18535037 has 2 divisors, whose sum is σ = 18535038. Its totient is φ = 18535036.

The previous prime is 18535009. The next prime is 18535043. The reversal of 18535037 is 73053581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9897316 + 8637721 = 3146^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 18535037 - 2²⁰ = 17486461 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18534994 and 18535012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18535067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9267518 + 9267519.

It is an arithmetic number, because the mean of its divisors is an integer number (9267519).

Almost surely, 2^18535037 is an apocalyptic number.

It is an amenable number.

18535037 is a deficient number, since it is larger than the sum of its proper divisors (1).

18535037 is an equidigital number, since it uses as much as digits as its factorization.

18535037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 18535037 is about 4305.2336754234. The cubic root of 18535037 is about 264.6454829814.

The spelling of 18535037 in words is "eighteen million, five hundred thirty-five thousand, thirty-seven".