43135145 has 4 divisors (see below), whose sum is σ = 51762180. Its totient is φ = 34508112.

The previous prime is 43135139. The next prime is 43135193. The reversal of 43135145 is 54153134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 31225744 = 3451^2 + 5588^2 .

It is a cyclic number.

It is not a de Polignac number, because 43135145 - 2⁴ = 43135129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4313510 + ... + 4313519.

It is an arithmetic number, because the mean of its divisors is an integer number (12940545).

Almost surely, 2^43135145 is an apocalyptic number.

It is an amenable number.

43135145 is a deficient number, since it is larger than the sum of its proper divisors (8627035).

43135145 is an equidigital number, since it uses as much as digits as its factorization.

43135145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8627034.

The product of its digits is 3600, while the sum is 26.

The square root of 43135145 is about 6567.7351499585. The cubic root of 43135145 is about 350.7064506701.

Adding to 43135145 its reverse (54153134), we get a palindrome (97288279).

The spelling of 43135145 in words is "forty-three million, one hundred thirty-five thousand, one hundred forty-five".