41431213 has 4 divisors (see below), whose sum is σ = 42212988. Its totient is φ = 40649440.

The previous prime is 41431207. The next prime is 41431217. The reversal of 41431213 is 31213414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19873764 + 21557449 = 4458^2 + 4643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41431213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41431217) 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, 390808 + ... + 390913.

It is an arithmetic number, because the mean of its divisors is an integer number (10553247).

Almost surely, 2^41431213 is an apocalyptic number.

It is an amenable number.

41431213 is a deficient number, since it is larger than the sum of its proper divisors (781775).

41431213 is an equidigital number, since it uses as much as digits as its factorization.

41431213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781774.

The product of its digits is 288, while the sum is 19.

The square root of 41431213 is about 6436.7082425724. The cubic root of 41431213 is about 346.0263854381.

Adding to 41431213 its reverse (31213414), we get a palindrome (72644627).

It can be divided in two parts, 4143 and 1213, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 41431213 in words is "forty-one million, four hundred thirty-one thousand, two hundred thirteen".