80061731 has 2 divisors, whose sum is σ = 80061732. Its totient is φ = 80061730.

The previous prime is 80061713. The next prime is 80061733. The reversal of 80061731 is 13716008.

Together with previous prime (80061713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80061731 is a prime.

It is a super-2 number, since 2×80061731² = 12819761541432722, which contains 22 as substring.

Together with 80061733, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80061731.

It is not a weakly prime, because it can be changed into another prime (80061733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40030865 + 40030866.

It is an arithmetic number, because the mean of its divisors is an integer number (40030866).

Almost surely, 2^80061731 is an apocalyptic number.

80061731 is a deficient number, since it is larger than the sum of its proper divisors (1).

80061731 is an equidigital number, since it uses as much as digits as its factorization.

80061731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 80061731 is about 8947.7221123591. The cubic root of 80061731 is about 430.9977390184.

Adding to 80061731 its reverse (13716008), we get a palindrome (93777739).

The spelling of 80061731 in words is "eighty million, sixty-one thousand, seven hundred thirty-one".