125421486 has 16 divisors (see below), whose sum is σ = 251461200. Its totient is φ = 41704128.

The previous prime is 125421469. The next prime is 125421511. The reversal of 125421486 is 684124521.

125421486 = 1849² + 1850² + ... + 1884².

It is a happy number.

It is a congruent number.

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, 23101 + ... + 28008.

It is an arithmetic number, because the mean of its divisors is an integer number (15716325).

Almost surely, 2^125421486 is an apocalyptic number.

125421486 is an abundant number, since it is smaller than the sum of its proper divisors (126039714).

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

125421486 is a wasteful number, since it uses less digits than its factorization.

125421486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51523.

The product of its digits is 15360, while the sum is 33.

The square root of 125421486 is about 11199.1734516437. The cubic root of 125421486 is about 500.5613508679.

It can be divided in two parts, 12542 and 1486, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 125421486 in words is "one hundred twenty-five million, four hundred twenty-one thousand, four hundred eighty-six".