44145331 has 2 divisors, whose sum is σ = 44145332. Its totient is φ = 44145330.

The previous prime is 44145323. The next prime is 44145347. The reversal of 44145331 is 13354144.

44145331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44145331 - 2³ = 44145323 is a prime.

It is a super-2 number, since 2×44145331² = 3897620498199122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44145296 and 44145305.

It is not a weakly prime, because it can be changed into another prime (44145301) 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 as a sum of consecutive naturals, namely, 22072665 + 22072666.

It is an arithmetic number, because the mean of its divisors is an integer number (22072666).

Almost surely, 2^44145331 is an apocalyptic number.

44145331 is a deficient number, since it is larger than the sum of its proper divisors (1).

44145331 is an equidigital number, since it uses as much as digits as its factorization.

44145331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 44145331 is about 6644.1952861125. The cubic root of 44145331 is about 353.4230950501.

Adding to 44145331 its reverse (13354144), we get a palindrome (57499475).

The spelling of 44145331 in words is "forty-four million, one hundred forty-five thousand, three hundred thirty-one".