125992818 has 48 divisors (see below), whose sum is σ = 318364800. Its totient is φ = 35996184.

The previous prime is 125992799. The next prime is 125992861. The reversal of 125992818 is 818299521.

It is a super-2 number, since 2×125992818² = 31748380375162248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4030 + ... + 16377.

It is an arithmetic number, because the mean of its divisors is an integer number (6632600).

Almost surely, 2^125992818 is an apocalyptic number.

125992818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

125992818 is an abundant number, since it is smaller than the sum of its proper divisors (192371982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125992818 is a wasteful number, since it uses less digits than its factorization.

125992818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20436 (or 20419 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 125992818 is about 11224.6522440564. The cubic root of 125992818 is about 501.3202680494.

The spelling of 125992818 in words is "one hundred twenty-five million, nine hundred ninety-two thousand, eight hundred eighteen".