40054129 has 4 divisors (see below), whose sum is σ = 40067584. Its totient is φ = 40040676.

The previous prime is 40054117. The next prime is 40054177. The reversal of 40054129 is 92145004.

40054129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40054129 - 2¹¹ = 40052081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40054229) 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 3 ways as a sum of consecutive naturals, for example, 57 + ... + 8950.

It is an arithmetic number, because the mean of its divisors is an integer number (10016896).

Almost surely, 2^40054129 is an apocalyptic number.

It is an amenable number.

40054129 is a deficient number, since it is larger than the sum of its proper divisors (13455).

40054129 is an equidigital number, since it uses as much as digits as its factorization.

40054129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13454.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 40054129 is about 6328.8331467973. The cubic root of 40054129 is about 342.1493852823.

The spelling of 40054129 in words is "forty million, fifty-four thousand, one hundred twenty-nine".