5231624138 has 8 divisors (see below), whose sum is σ = 8451085188. Its totient is φ = 2414595744.

The previous prime is 5231624129. The next prime is 5231624161. The reversal of 5231624138 is 8314261325.

It can be written as a sum of positive squares in 2 ways, for example, as 5137592329 + 94031809 = 71677^2 + 9697^2 .

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

It is a super-2 number, since 2×5231624138² = 54739782242608486088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5231624098 and 5231624107.

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, 100608131 + ... + 100608182.

Almost surely, 2^5231624138 is an apocalyptic number.

5231624138 is a deficient number, since it is larger than the sum of its proper divisors (3219461050).

5231624138 is a wasteful number, since it uses less digits than its factorization.

5231624138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201216328.

The product of its digits is 34560, while the sum is 35.

The square root of 5231624138 is about 72329.9670814248. The cubic root of 5231624138 is about 1735.9831746495.

The spelling of 5231624138 in words is "five billion, two hundred thirty-one million, six hundred twenty-four thousand, one hundred thirty-eight".