1213613753 has 16 divisors (see below), whose sum is σ = 1332277632. Its totient is φ = 1096368000.

The previous prime is 1213613749. The next prime is 1213613773. The reversal of 1213613753 is 3573163121.

It is a cyclic number.

It is not a de Polignac number, because 1213613753 - 2² = 1213613749 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213613773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2329133 + ... + 2329653.

It is an arithmetic number, because the mean of its divisors is an integer number (83267352).

Almost surely, 2^1213613753 is an apocalyptic number.

It is an amenable number.

1213613753 is a deficient number, since it is larger than the sum of its proper divisors (118663879).

1213613753 is a wasteful number, since it uses less digits than its factorization.

1213613753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456.

The product of its digits is 11340, while the sum is 32.

The square root of 1213613753 is about 34836.9595831783. The cubic root of 1213613753 is about 1066.6620152900.

Adding to 1213613753 its reverse (3573163121), we get a palindrome (4786776874).

The spelling of 1213613753 in words is "one billion, two hundred thirteen million, six hundred thirteen thousand, seven hundred fifty-three".