125140172 has 6 divisors (see below), whose sum is σ = 218995308. Its totient is φ = 62570084.

The previous prime is 125140163. The next prime is 125140181. The reversal of 125140172 is 271041521.

It is an interprime number because it is at equal distance from previous prime (125140163) and next prime (125140181).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15642518 + ... + 15642525.

It is an arithmetic number, because the mean of its divisors is an integer number (36499218).

Almost surely, 2^125140172 is an apocalyptic number.

It is an amenable number.

125140172 is a deficient number, since it is larger than the sum of its proper divisors (93855136).

125140172 is a wasteful number, since it uses less digits than its factorization.

125140172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31285047 (or 31285045 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 125140172 is about 11186.6068135069. The cubic root of 125140172 is about 500.1868261833.

Adding to 125140172 its reverse (271041521), we get a palindrome (396181693).

The spelling of 125140172 in words is "one hundred twenty-five million, one hundred forty thousand, one hundred seventy-two".