32453021 has 2 divisors, whose sum is σ = 32453022. Its totient is φ = 32453020.

The previous prime is 32453011. The next prime is 32453027. The reversal of 32453021 is 12035423.

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., 28408900 + 4044121 = 5330^2 + 2011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32453021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32452984 and 32453002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32453027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16226510 + 16226511.

It is an arithmetic number, because the mean of its divisors is an integer number (16226511).

Almost surely, 2^32453021 is an apocalyptic number.

It is an amenable number.

32453021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32453021 is an equidigital number, since it uses as much as digits as its factorization.

32453021 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 20.

The square root of 32453021 is about 5696.7553045571. The cubic root of 32453021 is about 318.9713748091.

Adding to 32453021 its reverse (12035423), we get a palindrome (44488444).

The spelling of 32453021 in words is "thirty-two million, four hundred fifty-three thousand, twenty-one".