1213744963 has 8 divisors (see below), whose sum is σ = 1220450400. Its totient is φ = 1207058688.

The previous prime is 1213744933. The next prime is 1213744993. The reversal of 1213744963 is 3694473121.

It is an interprime number because it is at equal distance from previous prime (1213744933) and next prime (1213744993).

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 1213744963 - 2⁹ = 1213744451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213744933) 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, 132898 + ... + 141736.

It is an arithmetic number, because the mean of its divisors is an integer number (152556300).

Almost surely, 2^1213744963 is an apocalyptic number.

1213744963 is a deficient number, since it is larger than the sum of its proper divisors (6705437).

1213744963 is an equidigital number, since it uses as much as digits as its factorization.

1213744963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581.

The product of its digits is 108864, while the sum is 40.

The square root of 1213744963 is about 34838.8427333630. The cubic root of 1213744963 is about 1066.7004546697.

The spelling of 1213744963 in words is "one billion, two hundred thirteen million, seven hundred forty-four thousand, nine hundred sixty-three".