125305890 has 16 divisors (see below), whose sum is σ = 300734208. Its totient is φ = 33414896.

The previous prime is 125305877. The next prime is 125305903. The reversal of 125305890 is 98503521.

It is an interprime number because it is at equal distance from previous prime (125305877) and next prime (125305903).

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, 2088402 + ... + 2088461.

It is an arithmetic number, because the mean of its divisors is an integer number (18795888).

Almost surely, 2^125305890 is an apocalyptic number.

125305890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125305890 is an abundant number, since it is smaller than the sum of its proper divisors (175428318).

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

125305890 is a wasteful number, since it uses less digits than its factorization.

125305890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176873.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 125305890 is about 11194.0113453578. The cubic root of 125305890 is about 500.4075210962.

The spelling of 125305890 in words is "one hundred twenty-five million, three hundred five thousand, eight hundred ninety".