44145231 has 16 divisors (see below), whose sum is σ = 63554400. Its totient is φ = 27095040.

The previous prime is 44145229. The next prime is 44145239. The reversal of 44145231 is 13254144.

44145231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44145231 - 2¹ = 44145229 is a prime.

It is a super-2 number, since 2×44145231² = 3897602840086722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44145239) 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 15 ways as a sum of consecutive naturals, for example, 16251 + ... + 18771.

It is an arithmetic number, because the mean of its divisors is an integer number (3972150).

Almost surely, 2^44145231 is an apocalyptic number.

44145231 is a deficient number, since it is larger than the sum of its proper divisors (19409169).

44145231 is a wasteful number, since it uses less digits than its factorization.

44145231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986.

The product of its digits is 1920, while the sum is 24.

The square root of 44145231 is about 6644.1877607425. The cubic root of 44145231 is about 353.4228281865.

Adding to 44145231 its reverse (13254144), we get a palindrome (57399375).

The spelling of 44145231 in words is "forty-four million, one hundred forty-five thousand, two hundred thirty-one".