80315961 has 8 divisors (see below), whose sum is σ = 116823264. Its totient is φ = 48676320.

The previous prime is 80315957. The next prime is 80315971. The reversal of 80315961 is 16951308.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80315961 - 2² = 80315957 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2433817 = 80315961 / (8 + 0 + 3 + 1 + 5 + 9 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (80315941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216876 + ... + 1216941.

It is an arithmetic number, because the mean of its divisors is an integer number (14602908).

Almost surely, 2^80315961 is an apocalyptic number.

It is an amenable number.

80315961 is a deficient number, since it is larger than the sum of its proper divisors (36507303).

80315961 is a wasteful number, since it uses less digits than its factorization.

80315961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433831.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 80315961 is about 8961.9172613900. The cubic root of 80315961 is about 431.4534572839.

The spelling of 80315961 in words is "eighty million, three hundred fifteen thousand, nine hundred sixty-one".