43153875109 has 2 divisors, whose sum is σ = 43153875110. Its totient is φ = 43153875108.

The previous prime is 43153875091. The next prime is 43153875139. The reversal of 43153875109 is 90157835134.

It is a happy number.

Together with previous prime (43153875091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33129460225 + 10024414884 = 182015^2 + 100122^2 .

It is a cyclic number.

It is not a de Polignac number, because 43153875109 - 2²⁷ = 43019657381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43153875139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21576937554 + 21576937555.

It is an arithmetic number, because the mean of its divisors is an integer number (21576937555).

Almost surely, 2^43153875109 is an apocalyptic number.

It is an amenable number.

43153875109 is a deficient number, since it is larger than the sum of its proper divisors (1).

43153875109 is an equidigital number, since it uses as much as digits as its factorization.

43153875109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 43153875109 in words is "forty-three billion, one hundred fifty-three million, eight hundred seventy-five thousand, one hundred nine".