125421292 has 24 divisors (see below), whose sum is σ = 222702480. Its totient is φ = 61797120.

The previous prime is 125421251. The next prime is 125421293. The reversal of 125421292 is 292124521.

It is a self number, because there is not a number n which added to its sum of digits gives 125421292.

It is not an unprimeable number, because it can be changed into a prime (125421293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202968 + ... + 203584.

It is an arithmetic number, because the mean of its divisors is an integer number (9279270).

Almost surely, 2^125421292 is an apocalyptic number.

It is an amenable number.

125421292 is a deficient number, since it is larger than the sum of its proper divisors (97281188).

125421292 is a wasteful number, since it uses less digits than its factorization.

125421292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 1279 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 125421292 is about 11199.1647902868. The cubic root of 125421292 is about 500.5610927809.

The spelling of 125421292 in words is "one hundred twenty-five million, four hundred twenty-one thousand, two hundred ninety-two".