1245105135 has 16 divisors (see below), whose sum is σ = 2213520480. Its totient is φ = 664056000.

The previous prime is 1245105107. The next prime is 1245105139. The reversal of 1245105135 is 5315015421.

1245105135 is a `hidden beast` number, since 12 + 4 + 510 + 5 + 135 = 666.

It is not a de Polignac number, because 1245105135 - 2¹¹ = 1245103087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1245105099 and 1245105108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245105139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4611366 + ... + 4611635.

It is an arithmetic number, because the mean of its divisors is an integer number (138345030).

Almost surely, 2^1245105135 is an apocalyptic number.

1245105135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1245105135 is a deficient number, since it is larger than the sum of its proper divisors (968415345).

1245105135 is an equidigital number, since it uses as much as digits as its factorization.

1245105135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223015 (or 9223009 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1245105135 is about 35286.0473133504. The cubic root of 1245105135 is about 1075.8094167207.

The spelling of 1245105135 in words is "one billion, two hundred forty-five million, one hundred five thousand, one hundred thirty-five".