125540658 has 32 divisors (see below), whose sum is σ = 279400320. Its totient is φ = 41783760.

The previous prime is 125540651. The next prime is 125540659. The reversal of 125540658 is 856045521.

It is a super-2 number, since 2×125540658² = 31520913622145928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125540651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46588 + ... + 49208.

It is an arithmetic number, because the mean of its divisors is an integer number (8731260).

Almost surely, 2^125540658 is an apocalyptic number.

125540658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

125540658 is an abundant number, since it is smaller than the sum of its proper divisors (153859662).

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

125540658 is a wasteful number, since it uses less digits than its factorization.

125540658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 125540658 is about 11204.4927596032. The cubic root of 125540658 is about 500.7198404953.

The spelling of 125540658 in words is "one hundred twenty-five million, five hundred forty thousand, six hundred fifty-eight".