1002372251 has 2 divisors, whose sum is σ = 1002372252. Its totient is φ = 1002372250.

The previous prime is 1002372247. The next prime is 1002372253. The reversal of 1002372251 is 1522732001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002372251 - 2² = 1002372247 is a prime.

Together with 1002372253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1002372253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501186125 + 501186126.

It is an arithmetic number, because the mean of its divisors is an integer number (501186126).

Almost surely, 2^1002372251 is an apocalyptic number.

1002372251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002372251 is an equidigital number, since it uses as much as digits as its factorization.

1002372251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1002372251 is about 31660.2629647955. The cubic root of 1002372251 is about 1000.7901258700.

The spelling of 1002372251 in words is "one billion, two million, three hundred seventy-two thousand, two hundred fifty-one".