245531530 has 8 divisors (see below), whose sum is σ = 441956772. Its totient is φ = 98212608.

The previous prime is 245531521. The next prime is 245531543. The reversal of 245531530 is 35135542.

It can be written as a sum of positive squares in 2 ways, for example, as 241833601 + 3697929 = 15551^2 + 1923^2 .

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

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, 12276567 + ... + 12276586.

Almost surely, 2^245531530 is an apocalyptic number.

245531530 is a deficient number, since it is larger than the sum of its proper divisors (196425242).

245531530 is a wasteful number, since it uses less digits than its factorization.

245531530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24553160.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 245531530 is about 15669.4457464200. The cubic root of 245531530 is about 626.1846587152.

The spelling of 245531530 in words is "two hundred forty-five million, five hundred thirty-one thousand, five hundred thirty".