40131875 has 20 divisors (see below), whose sum is σ = 57319152. Its totient is φ = 27516000.

The previous prime is 40131851. The next prime is 40131881. The reversal of 40131875 is 57813104.

It is not a de Polignac number, because 40131875 - 2¹² = 40127779 is a prime.

It is a super-2 number, since 2×40131875² = 3221134782031250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 212 + ... + 8961.

Almost surely, 2^40131875 is an apocalyptic number.

40131875 is a deficient number, since it is larger than the sum of its proper divisors (17187277).

40131875 is an frugal number, since it uses more digits than its factorization.

40131875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200 (or 9185 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 40131875 is about 6334.9723756304. The cubic root of 40131875 is about 342.3706155227.

Adding to 40131875 its reverse (57813104), we get a palindrome (97944979).

The spelling of 40131875 in words is "forty million, one hundred thirty-one thousand, eight hundred seventy-five".