125424731 has 8 divisors (see below), whose sum is σ = 127452864. Its totient is φ = 123405120.

The previous prime is 125424721. The next prime is 125424787. The reversal of 125424731 is 137424521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125424731 is a prime.

It is a super-2 number, since 2×125424731² = 31462726292844722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125424694 and 125424703.

It is not an unprimeable number, because it can be changed into a prime (125424721) 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 7 ways as a sum of consecutive naturals, for example, 31790 + ... + 35516.

It is an arithmetic number, because the mean of its divisors is an integer number (15931608).

Almost surely, 2^125424731 is an apocalyptic number.

125424731 is a deficient number, since it is larger than the sum of its proper divisors (2028133).

125424731 is an equidigital number, since it uses as much as digits as its factorization.

125424731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261.

The product of its digits is 6720, while the sum is 29.

The square root of 125424731 is about 11199.3183274698. The cubic root of 125424731 is about 500.5656677985.

The spelling of 125424731 in words is "one hundred twenty-five million, four hundred twenty-four thousand, seven hundred thirty-one".