516231401 has 16 divisors (see below), whose sum is σ = 628842240. Its totient is φ = 413683200.

The previous prime is 516231379. The next prime is 516231403. The reversal of 516231401 is 104132615.

It is a de Polignac number, because none of the positive numbers 2^k-516231401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516231403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3605 + ... + 32333.

It is an arithmetic number, because the mean of its divisors is an integer number (39302640).

Almost surely, 2^516231401 is an apocalyptic number.

It is an amenable number.

516231401 is a deficient number, since it is larger than the sum of its proper divisors (112610839).

516231401 is a wasteful number, since it uses less digits than its factorization.

516231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28904.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 516231401 is about 22720.7262427943. The cubic root of 516231401 is about 802.1978111907.

It can be divided in two parts, 5162 and 31401, that added together give a palindrome (36563).

The spelling of 516231401 in words is "five hundred sixteen million, two hundred thirty-one thousand, four hundred one".