43261331 has 8 divisors (see below), whose sum is σ = 43653120. Its totient is φ = 42871752.

The previous prime is 43261319. The next prime is 43261381. The reversal of 43261331 is 13316234.

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

It is a cyclic number.

It is not a de Polignac number, because 43261331 - 2¹⁰ = 43260307 is a prime.

It is a super-2 number, since 2×43261331² = 3743085519783122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43261297 and 43261306.

It is not an unprimeable number, because it can be changed into a prime (43261381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93206 + ... + 93668.

It is an arithmetic number, because the mean of its divisors is an integer number (5456640).

Almost surely, 2^43261331 is an apocalyptic number.

43261331 is a deficient number, since it is larger than the sum of its proper divisors (391789).

43261331 is a wasteful number, since it uses less digits than its factorization.

43261331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105.

The product of its digits is 1296, while the sum is 23.

The square root of 43261331 is about 6577.3346425433. The cubic root of 43261331 is about 351.0480990786.

Adding to 43261331 its reverse (13316234), we get a palindrome (56577565).

The spelling of 43261331 in words is "forty-three million, two hundred sixty-one thousand, three hundred thirty-one".