513996154 has 16 divisors (see below), whose sum is σ = 884492928. Its totient is φ = 219444912.

The previous prime is 513996143. The next prime is 513996167. The reversal of 513996154 is 451699315.

513996154 = 4271² + 4272² + ... + 4298².

It is a self number, because there is not a number n which added to its sum of digits gives 513996154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66117 + ... + 73480.

It is an arithmetic number, because the mean of its divisors is an integer number (55280808).

Almost surely, 2^513996154 is an apocalyptic number.

513996154 is a deficient number, since it is larger than the sum of its proper divisors (370496774).

513996154 is a wasteful number, since it uses less digits than its factorization.

513996154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139869.

The product of its digits is 145800, while the sum is 43.

The square root of 513996154 is about 22671.4832774567. The cubic root of 513996154 is about 801.0383153352.

The spelling of 513996154 in words is "five hundred thirteen million, nine hundred ninety-six thousand, one hundred fifty-four".