125561098 has 16 divisors (see below), whose sum is σ = 209373696. Its totient is φ = 56081520.

The previous prime is 125561087. The next prime is 125561123. The reversal of 125561098 is 890165521.

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, 77086 + ... + 78697.

It is an arithmetic number, because the mean of its divisors is an integer number (13085856).

Almost surely, 2^125561098 is an apocalyptic number.

125561098 is a deficient number, since it is larger than the sum of its proper divisors (83812598).

125561098 is a wasteful number, since it uses less digits than its factorization.

125561098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155829.

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 125561098 is about 11205.4048565860. The cubic root of 125561098 is about 500.7470140509.

The spelling of 125561098 in words is "one hundred twenty-five million, five hundred sixty-one thousand, ninety-eight".