18902041 has 2 divisors, whose sum is σ = 18902042. Its totient is φ = 18902040.

The previous prime is 18901957. The next prime is 18902047. The reversal of 18902041 is 14020981.

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., 16842816 + 2059225 = 4104^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 18902041 - 2⁷ = 18901913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18901997 and 18902015.

It is not a weakly prime, because it can be changed into another prime (18902047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9451020 + 9451021.

It is an arithmetic number, because the mean of its divisors is an integer number (9451021).

Almost surely, 2^18902041 is an apocalyptic number.

It is an amenable number.

18902041 is a deficient number, since it is larger than the sum of its proper divisors (1).

18902041 is an equidigital number, since it uses as much as digits as its factorization.

18902041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 18902041 is about 4347.6477548210. The cubic root of 18902041 is about 266.3807886013.

The spelling of 18902041 in words is "eighteen million, nine hundred two thousand, forty-one".