731013425 has 12 divisors (see below), whose sum is σ = 906829980. Its totient is φ = 584569920.

The previous prime is 731013389. The next prime is 731013427. The reversal of 731013425 is 524310137.

It can be written as a sum of positive squares in 6 ways, for example, as 21270544 + 709742881 = 4612^2 + 26641^2 .

It is a de Polignac number, because none of the positive numbers 2^k-731013425 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 731013394 and 731013403.

It is not an unprimeable number, because it can be changed into a prime (731013427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79991 + ... + 88659.

It is an arithmetic number, because the mean of its divisors is an integer number (75569165).

Almost surely, 2^731013425 is an apocalyptic number.

It is an amenable number.

731013425 is a deficient number, since it is larger than the sum of its proper divisors (175816555).

731013425 is a wasteful number, since it uses less digits than its factorization.

731013425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12052 (or 12047 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 731013425 is about 27037.2599388326. The cubic root of 731013425 is about 900.8278083181.

The spelling of 731013425 in words is "seven hundred thirty-one million, thirteen thousand, four hundred twenty-five".