1213254053 has 12 divisors (see below), whose sum is σ = 1343329260. Its totient is φ = 1094892480.

The previous prime is 1213254047. The next prime is 1213254059. The reversal of 1213254053 is 3504523121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1213254047) and next prime (1213254059).

It can be written as a sum of positive squares in 2 ways, for example, as 1019014084 + 194239969 = 31922^2 + 13937^2 .

It is not a de Polignac number, because 1213254053 - 2³⁰ = 139512229 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 (1213254059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20018 + ... + 53171.

It is an arithmetic number, because the mean of its divisors is an integer number (111944105).

Almost surely, 2^1213254053 is an apocalyptic number.

It is an amenable number.

1213254053 is a deficient number, since it is larger than the sum of its proper divisors (130075207).

1213254053 is a wasteful number, since it uses less digits than its factorization.

1213254053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73348 (or 73337 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1213254053 is about 34831.7965801364. The cubic root of 1213254053 is about 1066.5566230986.

Adding to 1213254053 its reverse (3504523121), we get a palindrome (4717777174).

The spelling of 1213254053 in words is "one billion, two hundred thirteen million, two hundred fifty-four thousand, fifty-three".