40132621 has 2 divisors, whose sum is σ = 40132622. Its totient is φ = 40132620.

The previous prime is 40132577. The next prime is 40132627. The reversal of 40132621 is 12623104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22610025 + 17522596 = 4755^2 + 4186^2 .

It is a cyclic number.

It is not a de Polignac number, because 40132621 - 2¹⁹ = 39608333 is a prime.

It is a super-2 number, since 2×40132621² = 3221254536659282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40132627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20066310 + 20066311.

It is an arithmetic number, because the mean of its divisors is an integer number (20066311).

Almost surely, 2^40132621 is an apocalyptic number.

It is an amenable number.

40132621 is a deficient number, since it is larger than the sum of its proper divisors (1).

40132621 is an equidigital number, since it uses as much as digits as its factorization.

40132621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40132621 is about 6335.0312548558. The cubic root of 40132621 is about 342.3727369195.

Adding to 40132621 its reverse (12623104), we get a palindrome (52755725).

The spelling of 40132621 in words is "forty million, one hundred thirty-two thousand, six hundred twenty-one".