245479274 has 4 divisors (see below), whose sum is σ = 368218914. Its totient is φ = 122739636.

The previous prime is 245479243. The next prime is 245479309. The reversal of 245479274 is 472974542.

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

It can be written as a sum of positive squares in only one way, i.e., 244140625 + 1338649 = 15625^2 + 1157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61369817 + ... + 61369820.

Almost surely, 2^245479274 is an apocalyptic number.

245479274 is a deficient number, since it is larger than the sum of its proper divisors (122739640).

245479274 is a wasteful number, since it uses less digits than its factorization.

245479274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122739639.

The product of its digits is 564480, while the sum is 44.

The square root of 245479274 is about 15667.7782087953. The cubic root of 245479274 is about 626.1402323406.

The spelling of 245479274 in words is "two hundred forty-five million, four hundred seventy-nine thousand, two hundred seventy-four".