125591492 has 12 divisors (see below), whose sum is σ = 236691756. Its totient is φ = 57965280.

The previous prime is 125591491. The next prime is 125591513. The reversal of 125591492 is 294195521.

It can be written as a sum of positive squares in 2 ways, for example, as 50353216 + 75238276 = 7096^2 + 8674^2 .

It is not an unprimeable number, because it can be changed into a prime (125591491) 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 3 ways as a sum of consecutive naturals, for example, 1207559 + ... + 1207662.

It is an arithmetic number, because the mean of its divisors is an integer number (19724313).

Almost surely, 2^125591492 is an apocalyptic number.

It is an amenable number.

125591492 is a deficient number, since it is larger than the sum of its proper divisors (111100264).

125591492 is a wasteful number, since it uses less digits than its factorization.

125591492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415238 (or 2415236 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 125591492 is about 11206.7609950422. The cubic root of 125591492 is about 500.7874153033.

The spelling of 125591492 in words is "one hundred twenty-five million, five hundred ninety-one thousand, four hundred ninety-two".