523370945 has 24 divisors (see below), whose sum is σ = 653320248. Its totient is φ = 402416640.

The previous prime is 523370929. The next prime is 523370951. The reversal of 523370945 is 549073325.

It can be written as a sum of positive squares in 12 ways, for example, as 475981489 + 47389456 = 21817^2 + 6884^2 .

It is not a de Polignac number, because 523370945 - 2⁴ = 523370929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523370899 and 523370908.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613139 + ... + 613991.

It is an arithmetic number, because the mean of its divisors is an integer number (27221677).

Almost surely, 2^523370945 is an apocalyptic number.

It is an amenable number.

523370945 is a deficient number, since it is larger than the sum of its proper divisors (129949303).

523370945 is an equidigital number, since it uses as much as digits as its factorization.

523370945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 523370945 is about 22877.3019606771. The cubic root of 523370945 is about 805.8790572122.

The spelling of 523370945 in words is "five hundred twenty-three million, three hundred seventy thousand, nine hundred forty-five".