18574141 has 2 divisors, whose sum is σ = 18574142. Its totient is φ = 18574140.

The previous prime is 18574121. The next prime is 18574147. The reversal of 18574141 is 14147581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10106041 + 8468100 = 3179^2 + 2910^2 .

It is a cyclic number.

It is not a de Polignac number, because 18574141 - 2¹³ = 18565949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18574147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9287070 + 9287071.

It is an arithmetic number, because the mean of its divisors is an integer number (9287071).

Almost surely, 2^18574141 is an apocalyptic number.

It is an amenable number.

18574141 is a deficient number, since it is larger than the sum of its proper divisors (1).

18574141 is an equidigital number, since it uses as much as digits as its factorization.

18574141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 31.

The square root of 18574141 is about 4309.7727318271. The cubic root of 18574141 is about 264.8314627886.

The spelling of 18574141 in words is "eighteen million, five hundred seventy-four thousand, one hundred forty-one".