125988811 has 16 divisors (see below), whose sum is σ = 142337664. Its totient is φ = 110726784.

The previous prime is 125988799. The next prime is 125988823. The reversal of 125988811 is 118889521.

It is an interprime number because it is at equal distance from previous prime (125988799) and next prime (125988823).

It is a cyclic number.

It is not a de Polignac number, because 125988811 - 2²¹ = 123891659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125988011) 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, 19821 + ... + 25393.

It is an arithmetic number, because the mean of its divisors is an integer number (8896104).

Almost surely, 2^125988811 is an apocalyptic number.

125988811 is a deficient number, since it is larger than the sum of its proper divisors (16348853).

125988811 is a wasteful number, since it uses less digits than its factorization.

125988811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670.

The product of its digits is 46080, while the sum is 43.

The square root of 125988811 is about 11224.4737515841. The cubic root of 125988811 is about 501.3149534300.

The spelling of 125988811 in words is "one hundred twenty-five million, nine hundred eighty-eight thousand, eight hundred eleven".