125254431 has 10 divisors (see below), whose sum is σ = 187108592. Its totient is φ = 83502900.

The previous prime is 125254427. The next prime is 125254457. The reversal of 125254431 is 134452521.

It is not a de Polignac number, because 125254431 - 2² = 125254427 is a prime.

It is a super-2 number, since 2×125254431² = 31377344970267522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125254395 and 125254404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125254931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 773095 + ... + 773256.

Almost surely, 2^125254431 is an apocalyptic number.

125254431 is a deficient number, since it is larger than the sum of its proper divisors (61854161).

125254431 is an equidigital number, since it uses as much as digits as its factorization.

125254431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546363 (or 1546354 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 125254431 is about 11191.7126035295. The cubic root of 125254431 is about 500.3390114239.

The spelling of 125254431 in words is "one hundred twenty-five million, two hundred fifty-four thousand, four hundred thirty-one".