18252061 has 2 divisors, whose sum is σ = 18252062. Its totient is φ = 18252060.

The previous prime is 18252029. The next prime is 18252083. The reversal of 18252061 is 16025281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17264025 + 988036 = 4155^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 18252061 - 2⁵ = 18252029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18252001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9126030 + 9126031.

It is an arithmetic number, because the mean of its divisors is an integer number (9126031).

Almost surely, 2^18252061 is an apocalyptic number.

It is an amenable number.

18252061 is a deficient number, since it is larger than the sum of its proper divisors (1).

18252061 is an equidigital number, since it uses as much as digits as its factorization.

18252061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 18252061 is about 4272.2430876531. The cubic root of 18252061 is about 263.2917819750.

The spelling of 18252061 in words is "eighteen million, two hundred fifty-two thousand, sixty-one".