40875129 has 6 divisors (see below), whose sum is σ = 59041866. Its totient is φ = 27250080.

The previous prime is 40875083. The next prime is 40875139. The reversal of 40875129 is 92157804.

It can be written as a sum of positive squares in only one way, i.e., 35676729 + 5198400 = 5973^2 + 2280^2 .

It is not a de Polignac number, because 40875129 - 2⁷ = 40875001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40875093 and 40875102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40875139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2270832 + ... + 2270849.

It is an arithmetic number, because the mean of its divisors is an integer number (9840311).

Almost surely, 2^40875129 is an apocalyptic number.

It is an amenable number.

40875129 is a deficient number, since it is larger than the sum of its proper divisors (18166737).

40875129 is a wasteful number, since it uses less digits than its factorization.

40875129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541687 (or 4541684 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 40875129 is about 6393.3660148626. The cubic root of 40875129 is about 344.4713011047.

It can be divided in two parts, 4087 and 5129, that added together give a square (9216 = 96²).

The spelling of 40875129 in words is "forty million, eight hundred seventy-five thousand, one hundred twenty-nine".