18736061 has 2 divisors, whose sum is σ = 18736062. Its totient is φ = 18736060.

The previous prime is 18736051. The next prime is 18736111. The reversal of 18736061 is 16063781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12208036 + 6528025 = 3494^2 + 2555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18736061 is a prime.

It is a Chen prime.

It is equal to p_1195295 and since 18736061 and 1195295 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18736031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9368030 + 9368031.

It is an arithmetic number, because the mean of its divisors is an integer number (9368031).

Almost surely, 2^18736061 is an apocalyptic number.

It is an amenable number.

18736061 is a deficient number, since it is larger than the sum of its proper divisors (1).

18736061 is an equidigital number, since it uses as much as digits as its factorization.

18736061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 18736061 is about 4328.5171825927. The cubic root of 18736061 is about 265.5987930961.

The spelling of 18736061 in words is "eighteen million, seven hundred thirty-six thousand, sixty-one".