2132451247 has 2 divisors, whose sum is σ = 2132451248. Its totient is φ = 2132451246.

The previous prime is 2132451239. The next prime is 2132451289. The reversal of 2132451247 is 7421542312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2132451247 - 2³ = 2132451239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132451047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066225623 + 1066225624.

It is an arithmetic number, because the mean of its divisors is an integer number (1066225624).

Almost surely, 2^2132451247 is an apocalyptic number.

2132451247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132451247 is an equidigital number, since it uses as much as digits as its factorization.

2132451247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 2132451247 is about 46178.4716832422. The cubic root of 2132451247 is about 1287.1417289748.

Adding to 2132451247 its reverse (7421542312), we get a palindrome (9553993559).

The spelling of 2132451247 in words is "two billion, one hundred thirty-two million, four hundred fifty-one thousand, two hundred forty-seven".