125992810 has 16 divisors (see below), whose sum is σ = 226953000. Its totient is φ = 50360256.

The previous prime is 125992799. The next prime is 125992861. The reversal of 125992810 is 18299521.

It can be written as a sum of positive squares in 4 ways, for example, as 117483921 + 8508889 = 10839^2 + 2917^2 .

It is a super-2 number, since 2×125992810² = 31748376343392200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125992810.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12916 + ... + 20464.

Almost surely, 2^125992810 is an apocalyptic number.

125992810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125992810 is a deficient number, since it is larger than the sum of its proper divisors (100960190).

125992810 is a wasteful number, since it uses less digits than its factorization.

125992810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9225.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 125992810 is about 11224.6518876979. The cubic root of 125992810 is about 501.3202574388.

The spelling of 125992810 in words is "one hundred twenty-five million, nine hundred ninety-two thousand, eight hundred ten".