40103613 has 16 divisors (see below), whose sum is σ = 64814400. Its totient is φ = 24305040.

The previous prime is 40103611. The next prime is 40103633. The reversal of 40103613 is 31630104.

40103613 is a `hidden beast` number, since 40 + 10 + 3 + 613 = 666.

It is not a de Polignac number, because 40103613 - 2¹ = 40103611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40103611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67218 + ... + 67811.

It is an arithmetic number, because the mean of its divisors is an integer number (4050900).

Almost surely, 2^40103613 is an apocalyptic number.

It is an amenable number.

40103613 is a deficient number, since it is larger than the sum of its proper divisors (24710787).

40103613 is a wasteful number, since it uses less digits than its factorization.

40103613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135049 (or 135043 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 40103613 is about 6332.7413495263. The cubic root of 40103613 is about 342.2902276297.

Adding to 40103613 its reverse (31630104), we get a palindrome (71733717).

The spelling of 40103613 in words is "forty million, one hundred three thousand, six hundred thirteen".