1213152653 has 2 divisors, whose sum is σ = 1213152654. Its totient is φ = 1213152652.

The previous prime is 1213152637. The next prime is 1213152671. The reversal of 1213152653 is 3562513121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 989291209 + 223861444 = 31453^2 + 14962^2 .

It is an emirp because it is prime and its reverse (3562513121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213152653 - 2⁴ = 1213152637 is a prime.

It is a super-3 number, since 3×1213152653³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213152683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606576326 + 606576327.

It is an arithmetic number, because the mean of its divisors is an integer number (606576327).

Almost surely, 2^1213152653 is an apocalyptic number.

It is an amenable number.

1213152653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213152653 is an equidigital number, since it uses as much as digits as its factorization.

1213152653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 1213152653 is about 34830.3409831141. The cubic root of 1213152653 is about 1066.5269091091.

Adding to 1213152653 its reverse (3562513121), we get a palindrome (4775665774).

The spelling of 1213152653 in words is "one billion, two hundred thirteen million, one hundred fifty-two thousand, six hundred fifty-three".