125521098 has 16 divisors (see below), whose sum is σ = 265809600. Its totient is φ = 39379136.

The previous prime is 125521073. The next prime is 125521141. The reversal of 125521098 is 890125521.

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, 615198 + ... + 615401.

It is an arithmetic number, because the mean of its divisors is an integer number (16613100).

Almost surely, 2^125521098 is an apocalyptic number.

125521098 is an abundant number, since it is smaller than the sum of its proper divisors (140288502).

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

125521098 is a wasteful number, since it uses less digits than its factorization.

125521098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230621.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 125521098 is about 11203.6198614555. The cubic root of 125521098 is about 500.6938340765.

The spelling of 125521098 in words is "one hundred twenty-five million, five hundred twenty-one thousand, ninety-eight".