80909102 has 4 divisors (see below), whose sum is σ = 121363656. Its totient is φ = 40454550.

The previous prime is 80909093. The next prime is 80909107. The reversal of 80909102 is 20190908.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80909107) 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 as a sum of consecutive naturals, namely, 20227274 + ... + 20227277.

It is an arithmetic number, because the mean of its divisors is an integer number (30340914).

Almost surely, 2^80909102 is an apocalyptic number.

80909102 is a deficient number, since it is larger than the sum of its proper divisors (40454554).

80909102 is a wasteful number, since it uses less digits than its factorization.

80909102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40454553.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 80909102 is about 8994.9486935724. The cubic root of 80909102 is about 432.5129616216.

It can be divided in two parts, 8090 and 9102, that multiplied together give a triangular number (73635180 = T₁₂₁₃₅).

The spelling of 80909102 in words is "eighty million, nine hundred nine thousand, one hundred two".