44142251 has 4 divisors (see below), whose sum is σ = 46738872. Its totient is φ = 41545632.

The previous prime is 44142247. The next prime is 44142253. The reversal of 44142251 is 15224144.

44142251 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.

It is a cyclic number.

It is not a de Polignac number, because 44142251 - 2² = 44142247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44142253) 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, 1298285 + ... + 1298318.

It is an arithmetic number, because the mean of its divisors is an integer number (11684718).

Almost surely, 2^44142251 is an apocalyptic number.

44142251 is a deficient number, since it is larger than the sum of its proper divisors (2596621).

44142251 is a wasteful number, since it uses less digits than its factorization.

44142251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596620.

The product of its digits is 1280, while the sum is 23.

The square root of 44142251 is about 6643.9635008028. The cubic root of 44142251 is about 353.4148754685.

Adding to 44142251 its reverse (15224144), we get a palindrome (59366395).

The spelling of 44142251 in words is "forty-four million, one hundred forty-two thousand, two hundred fifty-one".