80814953 has 2 divisors, whose sum is σ = 80814954. Its totient is φ = 80814952.

The previous prime is 80814947. The next prime is 80814971. The reversal of 80814953 is 35941808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63409369 + 17405584 = 7963^2 + 4172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80814953 is a prime.

It is not a weakly prime, because it can be changed into another prime (80814913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40407476 + 40407477.

It is an arithmetic number, because the mean of its divisors is an integer number (40407477).

Almost surely, 2^80814953 is an apocalyptic number.

It is an amenable number.

80814953 is a deficient number, since it is larger than the sum of its proper divisors (1).

80814953 is an equidigital number, since it uses as much as digits as its factorization.

80814953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 80814953 is about 8989.7137329283. The cubic root of 80814953 is about 432.3451335003.

The spelling of 80814953 in words is "eighty million, eight hundred fourteen thousand, nine hundred fifty-three".