18074057 has 2 divisors, whose sum is σ = 18074058. Its totient is φ = 18074056.

The previous prime is 18074041. The next prime is 18074059. The reversal of 18074057 is 75047081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16032016 + 2042041 = 4004^2 + 1429^2 .

It is an emirp because it is prime and its reverse (75047081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18074057 - 2⁴ = 18074041 is a prime.

Together with 18074059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18074059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037028 + 9037029.

It is an arithmetic number, because the mean of its divisors is an integer number (9037029).

Almost surely, 2^18074057 is an apocalyptic number.

It is an amenable number.

18074057 is a deficient number, since it is larger than the sum of its proper divisors (1).

18074057 is an equidigital number, since it uses as much as digits as its factorization.

18074057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 18074057 is about 4251.3594296413. The cubic root of 18074057 is about 262.4330629024.

The spelling of 18074057 in words is "eighteen million, seventy-four thousand, fifty-seven".