18000757 has 2 divisors, whose sum is σ = 18000758. Its totient is φ = 18000756.

The previous prime is 18000751. The next prime is 18000767. The reversal of 18000757 is 75700081.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11655396 + 6345361 = 3414^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 18000757 - 2⁷ = 18000629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18000751) 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 as a sum of consecutive naturals, namely, 9000378 + 9000379.

It is an arithmetic number, because the mean of its divisors is an integer number (9000379).

Almost surely, 2^18000757 is an apocalyptic number.

It is an amenable number.

18000757 is a deficient number, since it is larger than the sum of its proper divisors (1).

18000757 is an equidigital number, since it uses as much as digits as its factorization.

18000757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 18000757 is about 4242.7298994869. The cubic root of 18000757 is about 262.0778132606.

The spelling of 18000757 in words is "eighteen million, seven hundred fifty-seven", and thus it is an aban number.