43061213 has 8 divisors (see below), whose sum is σ = 46800600. Its totient is φ = 39382848.

The previous prime is 43061173. The next prime is 43061231. The reversal of 43061213 is 31216034.

It can be written as a sum of positive squares in 4 ways, for example, as 6543364 + 36517849 = 2558^2 + 6043^2 .

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 43061213 - 2⁸ = 43060957 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 (43061243) 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, 13778 + ... + 16611.

It is an arithmetic number, because the mean of its divisors is an integer number (5850075).

Almost surely, 2^43061213 is an apocalyptic number.

It is an amenable number.

43061213 is a deficient number, since it is larger than the sum of its proper divisors (3739387).

43061213 is a wasteful number, since it uses less digits than its factorization.

43061213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30511.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 43061213 is about 6562.1043118805. The cubic root of 43061213 is about 350.5059702430.

Adding to 43061213 its reverse (31216034), we get a palindrome (74277247).

It can be divided in two parts, 430612 and 13, that multiplied together give a square (5597956 = 2366²).

The spelling of 43061213 in words is "forty-three million, sixty-one thousand, two hundred thirteen".