40913501 has 2 divisors, whose sum is σ = 40913502. Its totient is φ = 40913500.

The previous prime is 40913473. The next prime is 40913513. The reversal of 40913501 is 10531904.

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., 36893476 + 4020025 = 6074^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 40913501 - 2⁶ = 40913437 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 (40913581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20456750 + 20456751.

It is an arithmetic number, because the mean of its divisors is an integer number (20456751).

Almost surely, 2^40913501 is an apocalyptic number.

It is an amenable number.

40913501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40913501 is an equidigital number, since it uses as much as digits as its factorization.

40913501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 40913501 is about 6396.3662340426. The cubic root of 40913501 is about 344.5790595310.

It can be divided in two parts, 40913 and 501, that added together give a palindrome (41414).

The spelling of 40913501 in words is "forty million, nine hundred thirteen thousand, five hundred one".