6131451231 has 48 divisors (see below), whose sum is σ = 9180138240. Its totient is φ = 3941015040.

The previous prime is 6131451167. The next prime is 6131451239. The reversal of 6131451231 is 1321541316.

It is a happy number.

6131451231 is a `hidden beast` number, since 613 + 1 + 4 + 5 + 12 + 31 = 666.

It is not a de Polignac number, because 6131451231 - 2⁶ = 6131451167 is a prime.

It is a super-2 number, since 2×6131451231² = 75189388396262830722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6131451195 and 6131451204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6131451239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22135065 + ... + 22135341.

It is an arithmetic number, because the mean of its divisors is an integer number (191252880).

Almost surely, 2^6131451231 is an apocalyptic number.

6131451231 is a deficient number, since it is larger than the sum of its proper divisors (3048687009).

6131451231 is a wasteful number, since it uses less digits than its factorization.

6131451231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 813 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 6131451231 is about 78303.5837685607. The cubic root of 6131451231 is about 1830.2949976823.

Adding to 6131451231 its reverse (1321541316), we get a palindrome (7452992547).

The spelling of 6131451231 in words is "six billion, one hundred thirty-one million, four hundred fifty-one thousand, two hundred thirty-one".