125397 has 6 divisors (see below), whose sum is σ = 181142. Its totient is φ = 83592.

The previous prime is 125387. The next prime is 125399. The reversal of 125397 is 793521.

It can be written as a sum of positive squares in only one way, i.e., 125316 + 81 = 354^2 + 9^2 .

It is not a de Polignac number, because 125397 - 2⁷ = 125269 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 125397.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125397.

It is not an unprimeable number, because it can be changed into a prime (125399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6958 + ... + 6975.

2¹²⁵³⁹⁷ is an apocalyptic number.

It is an amenable number.

125397 is a deficient number, since it is larger than the sum of its proper divisors (55745).

125397 is a wasteful number, since it uses less digits than its factorization.

125397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13939 (or 13936 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 125397 is about 354.1143882985. The cubic root of 125397 is about 50.0528773932.

The spelling of 125397 in words is "one hundred twenty-five thousand, three hundred ninety-seven".