44139113 has 8 divisors (see below), whose sum is σ = 46387968. Its totient is φ = 41945904.

The previous prime is 44139107. The next prime is 44139149. The reversal of 44139113 is 31193144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44139113 - 2⁴ = 44139097 is a prime.

It is a super-2 number, since 2×44139113² = 3896522592853538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44139163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12281 + ... + 15462.

It is an arithmetic number, because the mean of its divisors is an integer number (5798496).

Almost surely, 2^44139113 is an apocalyptic number.

44139113 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

44139113 is a deficient number, since it is larger than the sum of its proper divisors (2248855).

44139113 is a wasteful number, since it uses less digits than its factorization.

44139113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27823.

The product of its digits is 1296, while the sum is 26.

The square root of 44139113 is about 6643.7273423885. The cubic root of 44139113 is about 353.4065007094.

The spelling of 44139113 in words is "forty-four million, one hundred thirty-nine thousand, one hundred thirteen".