43472531 has 2 divisors, whose sum is σ = 43472532. Its totient is φ = 43472530.

The previous prime is 43472503. The next prime is 43472549. The reversal of 43472531 is 13527434.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43472531 - 2⁶ = 43472467 is a prime.

It is a super-2 number, since 2×43472531² = 3779721903091922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 43472494 and 43472503.

It is not a weakly prime, because it can be changed into another prime (43472501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21736265 + 21736266.

It is an arithmetic number, because the mean of its divisors is an integer number (21736266).

Almost surely, 2^43472531 is an apocalyptic number.

43472531 is a deficient number, since it is larger than the sum of its proper divisors (1).

43472531 is an equidigital number, since it uses as much as digits as its factorization.

43472531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 29.

The square root of 43472531 is about 6593.3702307697. The cubic root of 43472531 is about 351.6184393133.

Adding to 43472531 its reverse (13527434), we get a palindrome (56999965).

The spelling of 43472531 in words is "forty-three million, four hundred seventy-two thousand, five hundred thirty-one".