2421151591 has 2 divisors, whose sum is σ = 2421151592. Its totient is φ = 2421151590.

The previous prime is 2421151567. The next prime is 2421151613. The reversal of 2421151591 is 1951511242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2421151591 - 2⁵ = 2421151559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421151501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210575795 + 1210575796.

It is an arithmetic number, because the mean of its divisors is an integer number (1210575796).

Almost surely, 2^2421151591 is an apocalyptic number.

2421151591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421151591 is an equidigital number, since it uses as much as digits as its factorization.

2421151591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 31.

The square root of 2421151591 is about 49205.1988208563. The cubic root of 2421151591 is about 1342.7876161555.

The spelling of 2421151591 in words is "two billion, four hundred twenty-one million, one hundred fifty-one thousand, five hundred ninety-one".