1213514053 has 4 divisors (see below), whose sum is σ = 1233407788. Its totient is φ = 1193620320.

The previous prime is 1213514039. The next prime is 1213514087. The reversal of 1213514053 is 3504153121.

It is a happy number.

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 214827649 + 998686404 = 14657^2 + 31602^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213514053 - 2⁹ = 1213513541 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 (1213514153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9946776 + ... + 9946897.

It is an arithmetic number, because the mean of its divisors is an integer number (308351947).

Almost surely, 2^1213514053 is an apocalyptic number.

It is an amenable number.

1213514053 is a deficient number, since it is larger than the sum of its proper divisors (19893735).

1213514053 is an equidigital number, since it uses as much as digits as its factorization.

1213514053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19893734.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1213514053 is about 34835.5286022762. The cubic root of 1213514053 is about 1066.6328052510.

Adding to 1213514053 its reverse (3504153121), we get a palindrome (4717667174).

The spelling of 1213514053 in words is "one billion, two hundred thirteen million, five hundred fourteen thousand, fifty-three".