80743155 has 16 divisors (see below), whose sum is σ = 129304320. Its totient is φ = 43024608.

The previous prime is 80743151. The next prime is 80743177. The reversal of 80743155 is 55134708.

It is not a de Polignac number, because 80743155 - 2² = 80743151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80743151) 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, 25236 + ... + 28254.

It is an arithmetic number, because the mean of its divisors is an integer number (8081520).

Almost surely, 2^80743155 is an apocalyptic number.

80743155 is a deficient number, since it is larger than the sum of its proper divisors (48561165).

80743155 is a wasteful number, since it uses less digits than its factorization.

80743155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 80743155 is about 8985.7195037459. The cubic root of 80743155 is about 432.2170602005.

The spelling of 80743155 in words is "eighty million, seven hundred forty-three thousand, one hundred fifty-five".