515168942 has 8 divisors (see below), whose sum is σ = 773755416. Its totient is φ = 257250472.

The previous prime is 515168933. The next prime is 515168959. The reversal of 515168942 is 249861515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 515168942.

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, 165068 + ... + 168159.

It is an arithmetic number, because the mean of its divisors is an integer number (96719427).

Almost surely, 2^515168942 is an apocalyptic number.

515168942 is a deficient number, since it is larger than the sum of its proper divisors (258586474).

515168942 is a wasteful number, since it uses less digits than its factorization.

515168942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334002.

The product of its digits is 86400, while the sum is 41.

The square root of 515168942 is about 22697.3333676007. Note that the first 4 decimals coincide. The cubic root of 515168942 is about 801.6470971365.

The spelling of 515168942 in words is "five hundred fifteen million, one hundred sixty-eight thousand, nine hundred forty-two".