43275381 has 4 divisors (see below), whose sum is σ = 57700512. Its totient is φ = 28850252.

The previous prime is 43275371. The next prime is 43275403. The reversal of 43275381 is 18357234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43275381 - 2⁶ = 43275317 is a prime.

It is a super-2 number, since 2×43275381² = 3745517201390322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43275301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7212561 + ... + 7212566.

It is an arithmetic number, because the mean of its divisors is an integer number (14425128).

Almost surely, 2^43275381 is an apocalyptic number.

It is an amenable number.

43275381 is a deficient number, since it is larger than the sum of its proper divisors (14425131).

43275381 is a wasteful number, since it uses less digits than its factorization.

43275381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14425130.

The product of its digits is 20160, while the sum is 33.

The square root of 43275381 is about 6578.4026176573. The cubic root of 43275381 is about 351.0860983097.

The spelling of 43275381 in words is "forty-three million, two hundred seventy-five thousand, three hundred eighty-one".