516142474 has 8 divisors (see below), whose sum is σ = 819755748. Its totient is φ = 242890560.

The previous prime is 516142469. The next prime is 516142499. The reversal of 516142474 is 474241615.

It can be written as a sum of positive squares in 2 ways, for example, as 453051225 + 63091249 = 21285^2 + 7943^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 15180661 = 516142474 / (5 + 1 + 6 + 1 + 4 + 2 + 4 + 7 + 4).

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, 7590297 + ... + 7590364.

Almost surely, 2^516142474 is an apocalyptic number.

516142474 is a deficient number, since it is larger than the sum of its proper divisors (303613274).

516142474 is a wasteful number, since it uses less digits than its factorization.

516142474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180680.

The product of its digits is 26880, while the sum is 34.

The square root of 516142474 is about 22718.7692008172. The cubic root of 516142474 is about 802.1517458401.

The spelling of 516142474 in words is "five hundred sixteen million, one hundred forty-two thousand, four hundred seventy-four".