40113517 has 4 divisors (see below), whose sum is σ = 40152736. Its totient is φ = 40074300.

The previous prime is 40113511. The next prime is 40113581. The reversal of 40113517 is 71531104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40113517 - 2¹⁵ = 40080749 is a prime.

It is a super-2 number, since 2×40113517² = 3218188492218578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40113511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18033 + ... + 20134.

It is an arithmetic number, because the mean of its divisors is an integer number (10038184).

Almost surely, 2^40113517 is an apocalyptic number.

It is an amenable number.

40113517 is a deficient number, since it is larger than the sum of its proper divisors (39219).

40113517 is a wasteful number, since it uses less digits than its factorization.

40113517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39218.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 40113517 is about 6333.5232690818. The cubic root of 40113517 is about 342.3184026754.

The spelling of 40113517 in words is "forty million, one hundred thirteen thousand, five hundred seventeen".