80155039 has 2 divisors, whose sum is σ = 80155040. Its totient is φ = 80155038.

The previous prime is 80154979. The next prime is 80155067. The reversal of 80155039 is 93055108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80155039 - 2¹⁷ = 80023967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80155039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80155639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40077519 + 40077520.

It is an arithmetic number, because the mean of its divisors is an integer number (40077520).

Almost surely, 2^80155039 is an apocalyptic number.

80155039 is a deficient number, since it is larger than the sum of its proper divisors (1).

80155039 is an equidigital number, since it uses as much as digits as its factorization.

80155039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 80155039 is about 8952.9346585352. The cubic root of 80155039 is about 431.1651095526.

The spelling of 80155039 in words is "eighty million, one hundred fifty-five thousand, thirty-nine".