44145887 has 2 divisors, whose sum is σ = 44145888. Its totient is φ = 44145886.

The previous prime is 44145863. The next prime is 44145931. The reversal of 44145887 is 78854144.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44145887 - 2¹² = 44141791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44145817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22072943 + 22072944.

It is an arithmetic number, because the mean of its divisors is an integer number (22072944).

Almost surely, 2^44145887 is an apocalyptic number.

44145887 is a deficient number, since it is larger than the sum of its proper divisors (1).

44145887 is an equidigital number, since it uses as much as digits as its factorization.

44145887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 41.

The square root of 44145887 is about 6644.2371270147. The cubic root of 44145887 is about 353.4245788039.

It can be divided in two parts, 4414 and 5887, that added together give a palindrome (10301).

The spelling of 44145887 in words is "forty-four million, one hundred forty-five thousand, eight hundred eighty-seven".