80138695 has 16 divisors (see below), whose sum is σ = 118359360. Its totient is φ = 50724864.

The previous prime is 80138683. The next prime is 80138699. The reversal of 80138695 is 59683108.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80138695 - 2¹⁹ = 79614407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80138699) 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, 87610 + ... + 88519.

It is an arithmetic number, because the mean of its divisors is an integer number (7397460).

Almost surely, 2^80138695 is an apocalyptic number.

80138695 is a deficient number, since it is larger than the sum of its proper divisors (38220665).

80138695 is a wasteful number, since it uses less digits than its factorization.

80138695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176154.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 80138695 is about 8952.0218386686. The cubic root of 80138695 is about 431.1358020104.

The spelling of 80138695 in words is "eighty million, one hundred thirty-eight thousand, six hundred ninety-five".