40104613 has 2 divisors, whose sum is σ = 40104614. Its totient is φ = 40104612.

The previous prime is 40104599. The next prime is 40104653. The reversal of 40104613 is 31640104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39917124 + 187489 = 6318^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 40104613 - 2⁹ = 40104101 is a prime.

It is a super-3 number, since 3×40104613³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40104653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052306 + 20052307.

It is an arithmetic number, because the mean of its divisors is an integer number (20052307).

Almost surely, 2^40104613 is an apocalyptic number.

It is an amenable number.

40104613 is a deficient number, since it is larger than the sum of its proper divisors (1).

40104613 is an equidigital number, since it uses as much as digits as its factorization.

40104613 is an evil number, because the sum of its binary digits is even.

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

The square root of 40104613 is about 6332.8203037825. The cubic root of 40104613 is about 342.2930726550.

Adding to 40104613 its reverse (31640104), we get a palindrome (71744717).

It can be divided in two parts, 40 and 104613, that added together give a triangular number (104653 = T₄₅₇).

The spelling of 40104613 in words is "forty million, one hundred four thousand, six hundred thirteen".