40151031 has 16 divisors (see below), whose sum is σ = 57375744. Its totient is φ = 24909984.

The previous prime is 40151029. The next prime is 40151053. The reversal of 40151031 is 13015104.

It is not a de Polignac number, because 40151031 - 2¹ = 40151029 is a prime.

It is a super-2 number, since 2×40151031² = 3224210580725922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40151031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40151071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5311 + ... + 10416.

It is an arithmetic number, because the mean of its divisors is an integer number (3585984).

Almost surely, 2^40151031 is an apocalyptic number.

40151031 is a deficient number, since it is larger than the sum of its proper divisors (17224713).

40151031 is a wasteful number, since it uses less digits than its factorization.

40151031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15790.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 40151031 is about 6336.4841197623. The cubic root of 40151031 is about 342.4250810257.

Adding to 40151031 its reverse (13015104), we get a palindrome (53166135).

It can be divided in two parts, 4015103 and 1, that added together give a palindrome (4015104).

The spelling of 40151031 in words is "forty million, one hundred fifty-one thousand, thirty-one".