80201531 has 2 divisors, whose sum is σ = 80201532. Its totient is φ = 80201530.

The previous prime is 80201521. The next prime is 80201567. The reversal of 80201531 is 13510208.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80201531 is a prime.

It is a super-2 number, since 2×80201531² = 12864571149487922, which contains 22 as substring.

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 (80201521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40100765 + 40100766.

It is an arithmetic number, because the mean of its divisors is an integer number (40100766).

Almost surely, 2^80201531 is an apocalyptic number.

80201531 is a deficient number, since it is larger than the sum of its proper divisors (1).

80201531 is an equidigital number, since it uses as much as digits as its factorization.

80201531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 80201531 is about 8955.5307492074. The cubic root of 80201531 is about 431.2484557531.

Adding to 80201531 its reverse (13510208), we get a palindrome (93711739).

The spelling of 80201531 in words is "eighty million, two hundred one thousand, five hundred thirty-one".