18952001 has 2 divisors, whose sum is σ = 18952002. Its totient is φ = 18952000.

The previous prime is 18951953. The next prime is 18952007. The reversal of 18952001 is 10025981.

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., 18696976 + 255025 = 4324^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 18952001 - 2¹⁴ = 18935617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (18952007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9476000 + 9476001.

It is an arithmetic number, because the mean of its divisors is an integer number (9476001).

Almost surely, 2^18952001 is an apocalyptic number.

It is an amenable number.

18952001 is a deficient number, since it is larger than the sum of its proper divisors (1).

18952001 is an equidigital number, since it uses as much as digits as its factorization.

18952001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 18952001 is about 4353.3895989217. The cubic root of 18952001 is about 266.6152725608.

Adding to 18952001 its reverse (10025981), we get a palindrome (28977982).

The spelling of 18952001 in words is "eighteen million, nine hundred fifty-two thousand, one".