125631269 has 8 divisors (see below), whose sum is σ = 127929312. Its totient is φ = 123341040.

The previous prime is 125631229. The next prime is 125631271. The reversal of 125631269 is 962136521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125631269 - 2¹⁶ = 125565733 is a prime.

It is a super-2 number, since 2×125631269² = 31566431501100722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125631229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37622 + ... + 40824.

It is an arithmetic number, because the mean of its divisors is an integer number (15991164).

Almost surely, 2^125631269 is an apocalyptic number.

It is an amenable number.

125631269 is a deficient number, since it is larger than the sum of its proper divisors (2298043).

125631269 is an equidigital number, since it uses as much as digits as its factorization.

125631269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907.

The product of its digits is 19440, while the sum is 35.

The square root of 125631269 is about 11208.5355421661. The cubic root of 125631269 is about 500.8402790711.

The spelling of 125631269 in words is "one hundred twenty-five million, six hundred thirty-one thousand, two hundred sixty-nine".