80272531 has 2 divisors, whose sum is σ = 80272532. Its totient is φ = 80272530.

The previous prime is 80272483. The next prime is 80272541. The reversal of 80272531 is 13527208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80272531 - 2⁷ = 80272403 is a prime.

It is a super-2 number, since 2×80272531² = 12887358466291922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80272531.

It is not a weakly prime, because it can be changed into another prime (80272541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40136265 + 40136266.

It is an arithmetic number, because the mean of its divisors is an integer number (40136266).

Almost surely, 2^80272531 is an apocalyptic number.

80272531 is a deficient number, since it is larger than the sum of its proper divisors (1).

80272531 is an equidigital number, since it uses as much as digits as its factorization.

80272531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 80272531 is about 8959.4939031175. The cubic root of 80272531 is about 431.3756753093.

Adding to 80272531 its reverse (13527208), we get a palindrome (93799739).

The spelling of 80272531 in words is "eighty million, two hundred seventy-two thousand, five hundred thirty-one".