44145231431 has 16 divisors (see below), whose sum is σ = 51824100864. Its totient is φ = 36809813664.

The previous prime is 44145231409. The next prime is 44145231451. The reversal of 44145231431 is 13413254144.

It is a cyclic number.

It is not a de Polignac number, because 44145231431 - 2⁶ = 44145231367 is a prime.

It is a super-2 number, since 2×44145231431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44145231451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2093366 + ... + 2114348.

It is an arithmetic number, because the mean of its divisors is an integer number (3239006304).

Almost surely, 2^44145231431 is an apocalyptic number.

44145231431 is a deficient number, since it is larger than the sum of its proper divisors (7678869433).

44145231431 is a wasteful number, since it uses less digits than its factorization.

44145231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29150.

The product of its digits is 23040, while the sum is 32.

Adding to 44145231431 its reverse (13413254144), we get a palindrome (57558485575).

The spelling of 44145231431 in words is "forty-four billion, one hundred forty-five million, two hundred thirty-one thousand, four hundred thirty-one".