80157305 has 8 divisors (see below), whose sum is σ = 99505800. Its totient is φ = 61914496.

The previous prime is 80157283. The next prime is 80157331. The reversal of 80157305 is 50375108.

It can be written as a sum of positive squares in 4 ways, for example, as 90601 + 80066704 = 301^2 + 8948^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 80157305 - 2⁶ = 80157241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276260 + ... + 276549.

It is an arithmetic number, because the mean of its divisors is an integer number (12438225).

Almost surely, 2^80157305 is an apocalyptic number.

It is an amenable number.

80157305 is a deficient number, since it is larger than the sum of its proper divisors (19348495).

80157305 is a wasteful number, since it uses less digits than its factorization.

80157305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552843.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 80157305 is about 8953.0612083242. The cubic root of 80157305 is about 431.1691725575.

The spelling of 80157305 in words is "eighty million, one hundred fifty-seven thousand, three hundred five".