40359131 has 4 divisors (see below), whose sum is σ = 40393200. Its totient is φ = 40325064.

The previous prime is 40359113. The next prime is 40359133. The reversal of 40359131 is 13195304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40359131 is a prime.

It is a super-2 number, since 2×40359131² = 3257718910150322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40359131.

It is not an unprimeable number, because it can be changed into a prime (40359133) 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, 15191 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (10098300).

Almost surely, 2^40359131 is an apocalyptic number.

40359131 is a deficient number, since it is larger than the sum of its proper divisors (34069).

40359131 is a wasteful number, since it uses less digits than its factorization.

40359131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34068.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 40359131 is about 6352.8836759380. The cubic root of 40359131 is about 343.0156503610.

The spelling of 40359131 in words is "forty million, three hundred fifty-nine thousand, one hundred thirty-one".