872151431 has 2 divisors, whose sum is σ = 872151432. Its totient is φ = 872151430.

The previous prime is 872151373. The next prime is 872151437. The reversal of 872151431 is 134151278.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872151431 is a prime.

It is a super-2 number, since 2×872151431² = 1521296237190695522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872151437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436075715 + 436075716.

It is an arithmetic number, because the mean of its divisors is an integer number (436075716).

Almost surely, 2^872151431 is an apocalyptic number.

872151431 is a deficient number, since it is larger than the sum of its proper divisors (1).

872151431 is an equidigital number, since it uses as much as digits as its factorization.

872151431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 872151431 is about 29532.2100595265. The cubic root of 872151431 is about 955.4265360724.

The spelling of 872151431 in words is "eight hundred seventy-two million, one hundred fifty-one thousand, four hundred thirty-one".