80900155 has 16 divisors (see below), whose sum is σ = 112608000. Its totient is φ = 54644832.

The previous prime is 80900153. The next prime is 80900179. The reversal of 80900155 is 55100908.

It is a cyclic number.

It is not a de Polignac number, because 80900155 - 2¹ = 80900153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80900153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14905 + ... + 19594.

It is an arithmetic number, because the mean of its divisors is an integer number (7038000).

Almost surely, 2^80900155 is an apocalyptic number.

80900155 is a deficient number, since it is larger than the sum of its proper divisors (31707845).

80900155 is a wasteful number, since it uses less digits than its factorization.

80900155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34578.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 80900155 is about 8994.4513451350. The cubic root of 80900155 is about 432.4970184788.

The spelling of 80900155 in words is "eighty million, nine hundred thousand, one hundred fifty-five".