43140253 has 8 divisors (see below), whose sum is σ = 46720800. Its totient is φ = 39597168.

The previous prime is 43140233. The next prime is 43140259. The reversal of 43140253 is 35204134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-43140253 is a prime.

It is a super-2 number, since 2×43140253² = 3722162857808018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6943 + ... + 11596.

It is an arithmetic number, because the mean of its divisors is an integer number (5840100).

Almost surely, 2^43140253 is an apocalyptic number.

It is an amenable number.

43140253 is a deficient number, since it is larger than the sum of its proper divisors (3580547).

43140253 is a wasteful number, since it uses less digits than its factorization.

43140253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18731.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 43140253 is about 6568.1240091825. The cubic root of 43140253 is about 350.7202935032.

Adding to 43140253 its reverse (35204134), we get a palindrome (78344387).

The spelling of 43140253 in words is "forty-three million, one hundred forty thousand, two hundred fifty-three".