20152441 has 2 divisors, whose sum is σ = 20152442. Its totient is φ = 20152440.

The previous prime is 20152421. The next prime is 20152459. The reversal of 20152441 is 14425102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13542400 + 6610041 = 3680^2 + 2571^2 .

It is a cyclic number.

It is not a de Polignac number, because 20152441 - 2⁵ = 20152409 is a prime.

It is a super-2 number, since 2×20152441² = 812241756516962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20152411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076220 + 10076221.

It is an arithmetic number, because the mean of its divisors is an integer number (10076221).

Almost surely, 2^20152441 is an apocalyptic number.

It is an amenable number.

20152441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20152441 is an equidigital number, since it uses as much as digits as its factorization.

20152441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 20152441 is about 4489.1470236561. The cubic root of 20152441 is about 272.1296644253.

Adding to 20152441 its reverse (14425102), we get a palindrome (34577543).

The spelling of 20152441 in words is "twenty million, one hundred fifty-two thousand, four hundred forty-one".