18453101 has 2 divisors, whose sum is σ = 18453102. Its totient is φ = 18453100.

The previous prime is 18453089. The next prime is 18453103. The reversal of 18453101 is 10135481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10048900 + 8404201 = 3170^2 + 2899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18453101 is a prime.

It is a Sophie Germain prime.

Together with 18453103, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p_1178402 and since 18453101 and 1178402 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 (18453103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9226550 + 9226551.

It is an arithmetic number, because the mean of its divisors is an integer number (9226551).

Almost surely, 2^18453101 is an apocalyptic number.

It is an amenable number.

18453101 is a deficient number, since it is larger than the sum of its proper divisors (1).

18453101 is an equidigital number, since it uses as much as digits as its factorization.

18453101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 18453101 is about 4295.7072758744. The cubic root of 18453101 is about 264.2549429268.

Adding to 18453101 its reverse (10135481), we get a palindrome (28588582).

The spelling of 18453101 in words is "eighteen million, four hundred fifty-three thousand, one hundred one".