1012125765 has 32 divisors (see below), whose sum is σ = 1853429760. Its totient is φ = 462014784.

The previous prime is 1012125749. The next prime is 1012125773. The reversal of 1012125765 is 5675212101.

It is not a de Polignac number, because 1012125765 - 2⁴ = 1012125749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69706 + ... + 82964.

It is an arithmetic number, because the mean of its divisors is an integer number (57919680).

Almost surely, 2^1012125765 is an apocalyptic number.

1012125765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012125765 is a deficient number, since it is larger than the sum of its proper divisors (841303995).

1012125765 is a wasteful number, since it uses less digits than its factorization.

1012125765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14001.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1012125765 is about 31813.9240742163. The cubic root of 1012125765 is about 1004.0256937097.

Adding to 1012125765 its reverse (5675212101), we get a palindrome (6687337866).

The spelling of 1012125765 in words is "one billion, twelve million, one hundred twenty-five thousand, seven hundred sixty-five".