245156636 has 12 divisors (see below), whose sum is σ = 433447728. Its totient is φ = 121314432.

The previous prime is 245156617. The next prime is 245156651. The reversal of 245156636 is 636651542.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 245156636.

It is a congruent number.

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, 315536 + ... + 316311.

It is an arithmetic number, because the mean of its divisors is an integer number (36120644).

Almost surely, 2^245156636 is an apocalyptic number.

It is an amenable number.

245156636 is a deficient number, since it is larger than the sum of its proper divisors (188291092).

245156636 is a wasteful number, since it uses less digits than its factorization.

245156636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631948 (or 631946 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 245156636 is about 15657.4785965046. The cubic root of 245156636 is about 625.8657961348.

The spelling of 245156636 in words is "two hundred forty-five million, one hundred fifty-six thousand, six hundred thirty-six".