80513942 has 4 divisors (see below), whose sum is σ = 120770916. Its totient is φ = 40256970.

The previous prime is 80513933. The next prime is 80513981. The reversal of 80513942 is 24931508.

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

It is a junction number, because it is equal to n+sod(n) for n = 80513899 and 80513908.

It is a congruent number.

It is an unprimeable number.

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, 20128484 + ... + 20128487.

It is an arithmetic number, because the mean of its divisors is an integer number (30192729).

Almost surely, 2^80513942 is an apocalyptic number.

80513942 is a deficient number, since it is larger than the sum of its proper divisors (40256974).

80513942 is a wasteful number, since it uses less digits than its factorization.

80513942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40256973.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 80513942 is about 8972.9561461093. The cubic root of 80513942 is about 431.8076811710.

The spelling of 80513942 in words is "eighty million, five hundred thirteen thousand, nine hundred forty-two".