43998118141 has 2 divisors, whose sum is σ = 43998118142. Its totient is φ = 43998118140.

The previous prime is 43998118127. The next prime is 43998118223. The reversal of 43998118141 is 14181189934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27416405241 + 16581712900 = 165579^2 + 128770^2 .

It is a cyclic number.

It is not a de Polignac number, because 43998118141 - 2¹³ = 43998109949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43998112141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21999059070 + 21999059071.

It is an arithmetic number, because the mean of its divisors is an integer number (21999059071).

Almost surely, 2^43998118141 is an apocalyptic number.

It is an amenable number.

43998118141 is a deficient number, since it is larger than the sum of its proper divisors (1).

43998118141 is an equidigital number, since it uses as much as digits as its factorization.

43998118141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 49.

The spelling of 43998118141 in words is "forty-three billion, nine hundred ninety-eight million, one hundred eighteen thousand, one hundred forty-one".