2131451052 has 24 divisors (see below), whose sum is σ = 4975412736. Its totient is φ = 710194128.

The previous prime is 2131451029. The next prime is 2131451059. The reversal of 2131451052 is 2501541312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2131451059) 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, 4408 + ... + 65439.

It is an arithmetic number, because the mean of its divisors is an integer number (207308864).

Almost surely, 2^2131451052 is an apocalyptic number.

It is an amenable number.

2131451052 is an abundant number, since it is smaller than the sum of its proper divisors (2843961684).

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

2131451052 is a wasteful number, since it uses less digits than its factorization.

2131451052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72397 (or 72395 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2131451052 is about 46167.6407454399. The cubic root of 2131451052 is about 1286.9404591836.

Adding to 2131451052 its reverse (2501541312), we get a palindrome (4632992364).

The spelling of 2131451052 in words is "two billion, one hundred thirty-one million, four hundred fifty-one thousand, fifty-two".