245506916 has 12 divisors (see below), whose sum is σ = 431819388. Its totient is φ = 122129952.

The previous prime is 245506901. The next prime is 245506931. The reversal of 245506916 is 619605542.

It is an interprime number because it is at equal distance from previous prime (245506901) and next prime (245506931).

It can be written as a sum of positive squares in 2 ways, for example, as 131102500 + 114404416 = 11450^2 + 10696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 245506916.

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, 154991 + ... + 156566.

It is an arithmetic number, because the mean of its divisors is an integer number (35984949).

Almost surely, 2^245506916 is an apocalyptic number.

It is an amenable number.

245506916 is a deficient number, since it is larger than the sum of its proper divisors (186312472).

245506916 is a wasteful number, since it uses less digits than its factorization.

245506916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311758 (or 311756 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 245506916 is about 15668.6603128666. The cubic root of 245506916 is about 626.1637334675.

The spelling of 245506916 in words is "two hundred forty-five million, five hundred six thousand, nine hundred sixteen".