18528701 has 2 divisors, whose sum is σ = 18528702. Its totient is φ = 18528700.

The previous prime is 18528683. The next prime is 18528707. The reversal of 18528701 is 10782581.

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., 15413476 + 3115225 = 3926^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 18528701 - 2⁶ = 18528637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18528707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9264350 + 9264351.

It is an arithmetic number, because the mean of its divisors is an integer number (9264351).

Almost surely, 2^18528701 is an apocalyptic number.

It is an amenable number.

18528701 is a deficient number, since it is larger than the sum of its proper divisors (1).

18528701 is an equidigital number, since it uses as much as digits as its factorization.

18528701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 18528701 is about 4304.4977639674. The cubic root of 18528701 is about 264.6153241552.

The spelling of 18528701 in words is "eighteen million, five hundred twenty-eight thousand, seven hundred one".