80315761 has 16 divisors (see below), whose sum is σ = 87897600. Its totient is φ = 73180800.

The previous prime is 80315749. The next prime is 80315771. The reversal of 80315761 is 16751308.

It is a cyclic number.

It is not a de Polignac number, because 80315761 - 2¹⁹ = 79791473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80315731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35770 + ... + 37948.

It is an arithmetic number, because the mean of its divisors is an integer number (5493600).

Almost surely, 2^80315761 is an apocalyptic number.

It is an amenable number.

80315761 is a deficient number, since it is larger than the sum of its proper divisors (7581839).

80315761 is a wasteful number, since it uses less digits than its factorization.

80315761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 80315761 is about 8961.9061030564. The cubic root of 80315761 is about 431.4530991535.

The spelling of 80315761 in words is "eighty million, three hundred fifteen thousand, seven hundred sixty-one".