515400164 has 12 divisors (see below), whose sum is σ = 917238000. Its totient is φ = 253332168.

The previous prime is 515400161. The next prime is 515400191. The reversal of 515400164 is 461004515.

It is not an unprimeable number, because it can be changed into a prime (515400161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091714 + ... + 1092185.

It is an arithmetic number, because the mean of its divisors is an integer number (76436500).

Almost surely, 2^515400164 is an apocalyptic number.

It is an amenable number.

515400164 is a deficient number, since it is larger than the sum of its proper divisors (401837836).

515400164 is a wasteful number, since it uses less digits than its factorization.

515400164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183962 (or 2183960 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 515400164 is about 22702.4263901461. The cubic root of 515400164 is about 801.7670129580.

Adding to 515400164 its reverse (461004515), we get a palindrome (976404679).

The spelling of 515400164 in words is "five hundred fifteen million, four hundred thousand, one hundred sixty-four".