80138457 has 32 divisors (see below), whose sum is σ = 136550400. Its totient is φ = 45501264.

The previous prime is 80138449. The next prime is 80138473. The reversal of 80138457 is 75483108.

It is not a de Polignac number, because 80138457 - 2³ = 80138449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80138407) 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 31 ways as a sum of consecutive naturals, for example, 30294 + ... + 32832.

It is an arithmetic number, because the mean of its divisors is an integer number (4267200).

Almost surely, 2^80138457 is an apocalyptic number.

It is an amenable number.

80138457 is a deficient number, since it is larger than the sum of its proper divisors (56411943).

80138457 is a wasteful number, since it uses less digits than its factorization.

80138457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 80138457 is about 8952.0085455723. The cubic root of 80138457 is about 431.1353752069.

The spelling of 80138457 in words is "eighty million, one hundred thirty-eight thousand, four hundred fifty-seven".