125166253 has 4 divisors (see below), whose sum is σ = 130608288. Its totient is φ = 119724220.

The previous prime is 125166229. The next prime is 125166259. The reversal of 125166253 is 352661521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352661521 = 89 ⋅3962489.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125166253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125166259) 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, 2720983 + ... + 2721028.

It is an arithmetic number, because the mean of its divisors is an integer number (32652072).

Almost surely, 2^125166253 is an apocalyptic number.

It is an amenable number.

125166253 is a deficient number, since it is larger than the sum of its proper divisors (5442035).

125166253 is an equidigital number, since it uses as much as digits as its factorization.

125166253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442034.

The product of its digits is 10800, while the sum is 31.

The square root of 125166253 is about 11187.7724771288. The cubic root of 125166253 is about 500.2215724634.

It can be divided in two parts, 12516 and 6253, that added together give a square (18769 = 137²).

The spelling of 125166253 in words is "one hundred twenty-five million, one hundred sixty-six thousand, two hundred fifty-three".