18456701 has 2 divisors, whose sum is σ = 18456702. Its totient is φ = 18456700.

The previous prime is 18456677. The next prime is 18456707. The reversal of 18456701 is 10765481.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17556100 + 900601 = 4190^2 + 949^2 .

It is an emirp because it is prime and its reverse (10765481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18456701 - 2¹⁰ = 18455677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18456707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9228350 + 9228351.

It is an arithmetic number, because the mean of its divisors is an integer number (9228351).

Almost surely, 2^18456701 is an apocalyptic number.

It is an amenable number.

18456701 is a deficient number, since it is larger than the sum of its proper divisors (1).

18456701 is an equidigital number, since it uses as much as digits as its factorization.

18456701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 18456701 is about 4296.1262784048. The cubic root of 18456701 is about 264.2721262345.

The spelling of 18456701 in words is "eighteen million, four hundred fifty-six thousand, seven hundred one".