87167051 has 2 divisors, whose sum is σ = 87167052. Its totient is φ = 87167050.

The previous prime is 87167027. The next prime is 87167077. The reversal of 87167051 is 15076178.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87167051 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87167251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43583525 + 43583526.

It is an arithmetic number, because the mean of its divisors is an integer number (43583526).

Almost surely, 2^87167051 is an apocalyptic number.

87167051 is a deficient number, since it is larger than the sum of its proper divisors (1).

87167051 is an equidigital number, since it uses as much as digits as its factorization.

87167051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 87167051 is about 9336.3296321413. The cubic root of 87167051 is about 443.3881865658.

The spelling of 87167051 in words is "eighty-seven million, one hundred sixty-seven thousand, fifty-one".