1245351045105 has 24 divisors (see below), whose sum is σ = 2158637630760. Its totient is φ = 664178254080.

The previous prime is 1245351045091. The next prime is 1245351045119. The reversal of 1245351045105 is 5015401535421.

1245351045105 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 35 + 104 + 510 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1245351045091) and next prime (1245351045119).

It can be written as a sum of positive squares in 4 ways, for example, as 52572528369 + 1192778516736 = 229287^2 + 1092144^2 .

It is not a de Polignac number, because 1245351045105 - 2⁴ = 1245351045089 is a prime.

It is a super-2 number, since 2×1245351045105² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245351045105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4442341 + ... + 4714349.

It is an arithmetic number, because the mean of its divisors is an integer number (89943234615).

Almost surely, 2^{1245351045105} is an apocalyptic number.

1245351045105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245351045105 is a deficient number, since it is larger than the sum of its proper divisors (913286585655).

1245351045105 is a wasteful number, since it uses less digits than its factorization.

1245351045105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373761 (or 373758 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1245351045105 in words is "one trillion, two hundred forty-five billion, three hundred fifty-one million, forty-five thousand, one hundred five".