80393149 has 2 divisors, whose sum is σ = 80393150. Its totient is φ = 80393148.

The previous prime is 80393143. The next prime is 80393167. The reversal of 80393149 is 94139308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77968900 + 2424249 = 8830^2 + 1557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80393149 is a prime.

It is a super-2 number, since 2×80393149² = 12926116812272402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80393143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40196574 + 40196575.

It is an arithmetic number, because the mean of its divisors is an integer number (40196575).

Almost surely, 2^80393149 is an apocalyptic number.

It is an amenable number.

80393149 is a deficient number, since it is larger than the sum of its proper divisors (1).

80393149 is an equidigital number, since it uses as much as digits as its factorization.

80393149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 80393149 is about 8966.2226717833. Note that the first 3 decimals coincide. The cubic root of 80393149 is about 431.5916297637.

The spelling of 80393149 in words is "eighty million, three hundred ninety-three thousand, one hundred forty-nine".