40931129 has 8 divisors (see below), whose sum is σ = 42389760. Its totient is φ = 39481200.

The previous prime is 40931119. The next prime is 40931131. The reversal of 40931129 is 92113904.

It is a happy number.

40931129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40931129 - 2⁴ = 40931113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40931119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8267 + ... + 12255.

It is an arithmetic number, because the mean of its divisors is an integer number (5298720).

Almost surely, 2^40931129 is an apocalyptic number.

It is an amenable number.

40931129 is a deficient number, since it is larger than the sum of its proper divisors (1458631).

40931129 is a wasteful number, since it uses less digits than its factorization.

40931129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 40931129 is about 6397.7440555246. The cubic root of 40931129 is about 344.6285408948.

The spelling of 40931129 in words is "forty million, nine hundred thirty-one thousand, one hundred twenty-nine".