43140135 has 16 divisors (see below), whose sum is σ = 73084896. Its totient is φ = 21654528.

The previous prime is 43140121. The next prime is 43140193. The reversal of 43140135 is 53104134.

It is not a de Polignac number, because 43140135 - 2⁵ = 43140103 is a prime.

It is a super-2 number, since 2×43140135² = 3722142495636450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84334 + ... + 84843.

It is an arithmetic number, because the mean of its divisors is an integer number (4567806).

Almost surely, 2^43140135 is an apocalyptic number.

43140135 is a deficient number, since it is larger than the sum of its proper divisors (29944761).

43140135 is a wasteful number, since it uses less digits than its factorization.

43140135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169202.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 43140135 is about 6568.1150263984. The cubic root of 43140135 is about 350.7199737320.

Adding to 43140135 its reverse (53104134), we get a palindrome (96244269).

The spelling of 43140135 in words is "forty-three million, one hundred forty thousand, one hundred thirty-five".