125890138 has 8 divisors (see below), whose sum is σ = 206002080. Its totient is φ = 57222780.

The previous prime is 125890103. The next prime is 125890187. The reversal of 125890138 is 831098521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 125890097 and 125890106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861118 + ... + 2861161.

It is an arithmetic number, because the mean of its divisors is an integer number (25750260).

Almost surely, 2^125890138 is an apocalyptic number.

125890138 is a deficient number, since it is larger than the sum of its proper divisors (80111942).

125890138 is a wasteful number, since it uses less digits than its factorization.

125890138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722292.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 125890138 is about 11220.0774507131. The cubic root of 125890138 is about 501.1840445305.

The spelling of 125890138 in words is "one hundred twenty-five million, eight hundred ninety thousand, one hundred thirty-eight".