40088131 has 4 divisors (see below), whose sum is σ = 41171632. Its totient is φ = 39004632.

The previous prime is 40088117. The next prime is 40088141. The reversal of 40088131 is 13188004.

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

It is a cyclic number.

It is not a de Polignac number, because 40088131 - 2²⁵ = 6533699 is a prime.

It is a super-2 number, since 2×40088131² = 3214116494146322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40088096 and 40088105.

It is not an unprimeable number, because it can be changed into a prime (40088141) 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, 541695 + ... + 541768.

It is an arithmetic number, because the mean of its divisors is an integer number (10292908).

Almost surely, 2^40088131 is an apocalyptic number.

40088131 is a deficient number, since it is larger than the sum of its proper divisors (1083501).

40088131 is a wasteful number, since it uses less digits than its factorization.

40088131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083500.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 40088131 is about 6331.5188541139. The cubic root of 40088131 is about 342.2461749123.

The spelling of 40088131 in words is "forty million, eighty-eight thousand, one hundred thirty-one".