44000140123157 has 2 divisors, whose sum is σ = 44000140123158. Its totient is φ = 44000140123156.

The previous prime is 44000140123019. The next prime is 44000140123189. The reversal of 44000140123157 is 75132104100044.

It is an a-pointer prime, because the next prime (44000140123189) can be obtained adding 44000140123157 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24705214148356 + 19294925974801 = 4970434^2 + 4392599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44000140123157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44000140123657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22000070061578 + 22000070061579.

It is an arithmetic number, because the mean of its divisors is an integer number (22000070061579).

Almost surely, 2^{44000140123157} is an apocalyptic number.

It is an amenable number.

44000140123157 is a deficient number, since it is larger than the sum of its proper divisors (1).

44000140123157 is an equidigital number, since it uses as much as digits as its factorization.

44000140123157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 44000140123157 in words is "forty-four trillion, one hundred forty million, one hundred twenty-three thousand, one hundred fifty-seven".