1213132535 has 8 divisors (see below), whose sum is σ = 1455960960. Its totient is φ = 970371424.

The previous prime is 1213132519. The next prime is 1213132561. The reversal of 1213132535 is 5352313121.

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 1213132535 - 2⁴ = 1213132519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40721 + ... + 63909.

It is an arithmetic number, because the mean of its divisors is an integer number (181995120).

Almost surely, 2^1213132535 is an apocalyptic number.

1213132535 is a deficient number, since it is larger than the sum of its proper divisors (242828425).

1213132535 is a wasteful number, since it uses less digits than its factorization.

1213132535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33657.

The product of its digits is 2700, while the sum is 26.

The square root of 1213132535 is about 34830.0521819879. The cubic root of 1213132535 is about 1066.5210135864.

Adding to 1213132535 its reverse (5352313121), we get a palindrome (6565445656).

The spelling of 1213132535 in words is "one billion, two hundred thirteen million, one hundred thirty-two thousand, five hundred thirty-five".