43475735137 has 2 divisors, whose sum is σ = 43475735138. Its totient is φ = 43475735136.

The previous prime is 43475735131. The next prime is 43475735183. The reversal of 43475735137 is 73153757434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28535317776 + 14940417361 = 168924^2 + 122231^2 .

It is a cyclic number.

It is not a de Polignac number, because 43475735137 - 2³ = 43475735129 is a prime.

It is not a weakly prime, because it can be changed into another prime (43475735131) 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, 21737867568 + 21737867569.

It is an arithmetic number, because the mean of its divisors is an integer number (21737867569).

Almost surely, 2^43475735137 is an apocalyptic number.

It is an amenable number.

43475735137 is a deficient number, since it is larger than the sum of its proper divisors (1).

43475735137 is an equidigital number, since it uses as much as digits as its factorization.

43475735137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3704400, while the sum is 49.

The spelling of 43475735137 in words is "forty-three billion, four hundred seventy-five million, seven hundred thirty-five thousand, one hundred thirty-seven".