43404530137 has 2 divisors, whose sum is σ = 43404530138. Its totient is φ = 43404530136.

The previous prime is 43404530131. The next prime is 43404530149. The reversal of 43404530137 is 73103540434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43190814976 + 213715161 = 207824^2 + 14619^2 .

It is a cyclic number.

It is not a de Polignac number, because 43404530137 - 2⁷ = 43404530009 is a prime.

It is not a weakly prime, because it can be changed into another prime (43404530131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21702265068 + 21702265069.

It is an arithmetic number, because the mean of its divisors is an integer number (21702265069).

Almost surely, 2^43404530137 is an apocalyptic number.

It is an amenable number.

43404530137 is a deficient number, since it is larger than the sum of its proper divisors (1).

43404530137 is an equidigital number, since it uses as much as digits as its factorization.

43404530137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 34.

The spelling of 43404530137 in words is "forty-three billion, four hundred four million, five hundred thirty thousand, one hundred thirty-seven".