2152434391 has 2 divisors, whose sum is σ = 2152434392. Its totient is φ = 2152434390.

The previous prime is 2152434329. The next prime is 2152434457. The reversal of 2152434391 is 1934342512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2152434391 - 2¹⁷ = 2152303319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152434301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076217195 + 1076217196.

It is an arithmetic number, because the mean of its divisors is an integer number (1076217196).

Almost surely, 2^2152434391 is an apocalyptic number.

2152434391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152434391 is an equidigital number, since it uses as much as digits as its factorization.

2152434391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 2152434391 is about 46394.3357641857. The cubic root of 2152434391 is about 1291.1498253229.

The spelling of 2152434391 in words is "two billion, one hundred fifty-two million, four hundred thirty-four thousand, three hundred ninety-one".