1245675105 has 28 divisors (see below), whose sum is σ = 2241196500. Its totient is φ = 664358112.

The previous prime is 1245675097. The next prime is 1245675107. The reversal of 1245675105 is 5015765421.

It can be written as a sum of positive squares in 2 ways, for example, as 896583249 + 349091856 = 29943^2 + 18684^2 .

It is not a de Polignac number, because 1245675105 - 2³ = 1245675097 is a prime.

It is a super-2 number, since 2×1245675105² = 3103412934433522050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1245675105.

It is not an unprimeable number, because it can be changed into a prime (1245675107) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 167230 + ... + 174519.

Almost surely, 2^1245675105 is an apocalyptic number.

1245675105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245675105 is a deficient number, since it is larger than the sum of its proper divisors (995521395).

1245675105 is an frugal number, since it uses more digits than its factorization.

1245675105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341772 (or 341757 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 1245675105 is about 35294.1228110290. The cubic root of 1245675105 is about 1075.9735489253.

The spelling of 1245675105 in words is "one billion, two hundred forty-five million, six hundred seventy-five thousand, one hundred five".