5155121531 has 8 divisors (see below), whose sum is σ = 6238130400. Its totient is φ = 4158753408.

The previous prime is 5155121501. The next prime is 5155121557. The reversal of 5155121531 is 1351215515.

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

It is a cyclic number.

It is not a de Polignac number, because 5155121531 - 2¹⁴ = 5155105147 is a prime.

It is a super-2 number, since 2×5155121531² = 53150555998759567922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5155121494 and 5155121503.

It is not an unprimeable number, because it can be changed into a prime (5155121501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21660056 + ... + 21660293.

It is an arithmetic number, because the mean of its divisors is an integer number (779766300).

Almost surely, 2^5155121531 is an apocalyptic number.

5155121531 is a deficient number, since it is larger than the sum of its proper divisors (1083008869).

5155121531 is a wasteful number, since it uses less digits than its factorization.

5155121531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43320373.

The product of its digits is 3750, while the sum is 29.

The square root of 5155121531 is about 71799.1750022241. The cubic root of 5155121531 is about 1727.4797668183.

The spelling of 5155121531 in words is "five billion, one hundred fifty-five million, one hundred twenty-one thousand, five hundred thirty-one".