44145559 has 4 divisors (see below), whose sum is σ = 44482680. Its totient is φ = 43808440.

The previous prime is 44145557. The next prime is 44145587. The reversal of 44145559 is 95554144.

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 44145559 - 2¹ = 44145557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44145557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168364 + ... + 168625.

It is an arithmetic number, because the mean of its divisors is an integer number (11120670).

Almost surely, 2^44145559 is an apocalyptic number.

44145559 is a deficient number, since it is larger than the sum of its proper divisors (337121).

44145559 is a wasteful number, since it uses less digits than its factorization.

44145559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337120.

The product of its digits is 72000, while the sum is 37.

The square root of 44145559 is about 6644.2124439244. The cubic root of 44145559 is about 353.4237034974.

The spelling of 44145559 in words is "forty-four million, one hundred forty-five thousand, five hundred fifty-nine".