531700745 has 4 divisors (see below), whose sum is σ = 638040900. Its totient is φ = 425360592.

The previous prime is 531700723. The next prime is 531700759. The reversal of 531700745 is 547007135.

531700745 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307090576 + 224610169 = 17524^2 + 14987^2 .

It is a cyclic number.

It is not a de Polignac number, because 531700745 - 2⁸ = 531700489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53170070 + ... + 53170079.

It is an arithmetic number, because the mean of its divisors is an integer number (159510225).

Almost surely, 2^531700745 is an apocalyptic number.

It is an amenable number.

531700745 is a deficient number, since it is larger than the sum of its proper divisors (106340155).

531700745 is a wasteful number, since it uses less digits than its factorization.

531700745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106340154.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 531700745 is about 23058.6371019625. The cubic root of 531700745 is about 810.1319426379.

The spelling of 531700745 in words is "five hundred thirty-one million, seven hundred thousand, seven hundred forty-five".