80361187 has 2 divisors, whose sum is σ = 80361188. Its totient is φ = 80361186.

The previous prime is 80361167. The next prime is 80361199. The reversal of 80361187 is 78116308.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80361187 is a prime.

It is not a weakly prime, because it can be changed into another prime (80361157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40180593 + 40180594.

It is an arithmetic number, because the mean of its divisors is an integer number (40180594).

Almost surely, 2^80361187 is an apocalyptic number.

80361187 is a deficient number, since it is larger than the sum of its proper divisors (1).

80361187 is an equidigital number, since it uses as much as digits as its factorization.

80361187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 80361187 is about 8964.4401386813. The cubic root of 80361187 is about 431.5344260494.

The spelling of 80361187 in words is "eighty million, three hundred sixty-one thousand, one hundred eighty-seven".