2131451262 has 96 divisors (see below), whose sum is σ = 5221801728. Its totient is φ = 624653568.

The previous prime is 2131451237. The next prime is 2131451281. The reversal of 2131451262 is 2621541312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299113 + ... + 306155.

It is an arithmetic number, because the mean of its divisors is an integer number (54393768).

Almost surely, 2^2131451262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131451262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2610900864).

2131451262 is an abundant number, since it is smaller than the sum of its proper divisors (3090350466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131451262 is a wasteful number, since it uses less digits than its factorization.

2131451262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134 (or 7131 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2131451262 is about 46167.6430197601. The cubic root of 2131451262 is about 1286.9405014486.

Adding to 2131451262 its reverse (2621541312), we get a palindrome (4752992574).

The spelling of 2131451262 in words is "two billion, one hundred thirty-one million, four hundred fifty-one thousand, two hundred sixty-two".