44136181 has 2 divisors, whose sum is σ = 44136182. Its totient is φ = 44136180.

The previous prime is 44136179. The next prime is 44136217. The reversal of 44136181 is 18163144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26780625 + 17355556 = 5175^2 + 4166^2 .

It is a cyclic number.

It is not a de Polignac number, because 44136181 - 2¹ = 44136179 is a prime.

It is a super-2 number, since 2×44136181² = 3896004946529522, which contains 22 as substring.

Together with 44136179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44136101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22068090 + 22068091.

It is an arithmetic number, because the mean of its divisors is an integer number (22068091).

Almost surely, 2^44136181 is an apocalyptic number.

It is an amenable number.

44136181 is a deficient number, since it is larger than the sum of its proper divisors (1).

44136181 is an equidigital number, since it uses as much as digits as its factorization.

44136181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 44136181 is about 6643.5066794578. The cubic root of 44136181 is about 353.3986753686.

The spelling of 44136181 in words is "forty-four million, one hundred thirty-six thousand, one hundred eighty-one".