1213064441 has 8 divisors (see below), whose sum is σ = 1253217024. Its totient is φ = 1172975760.

The previous prime is 1213064327. The next prime is 1213064449. The reversal of 1213064441 is 1444603121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213064441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213064441.

It is not an unprimeable number, because it can be changed into a prime (1213064449) 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, 24266 + ... + 54908.

It is an arithmetic number, because the mean of its divisors is an integer number (156652128).

Almost surely, 2^1213064441 is an apocalyptic number.

It is an amenable number.

1213064441 is a deficient number, since it is larger than the sum of its proper divisors (40152583).

1213064441 is a wasteful number, since it uses less digits than its factorization.

1213064441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31951.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1213064441 is about 34829.0746503550. The cubic root of 1213064441 is about 1066.5010583497.

Adding to 1213064441 its reverse (1444603121), we get a palindrome (2657667562).

The spelling of 1213064441 in words is "one billion, two hundred thirteen million, sixty-four thousand, four hundred forty-one".