1213535141 has 8 divisors (see below), whose sum is σ = 1493581824. Its totient is φ = 960159600.

The previous prime is 1213535101. The next prime is 1213535143. The reversal of 1213535141 is 1415353121.

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 1213535141 - 2⁶ = 1213535077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213535141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213535143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6667685 + ... + 6667866.

It is an arithmetic number, because the mean of its divisors is an integer number (186697728).

Almost surely, 2^1213535141 is an apocalyptic number.

It is an amenable number.

1213535141 is a deficient number, since it is larger than the sum of its proper divisors (280046683).

1213535141 is a wasteful number, since it uses less digits than its factorization.

1213535141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335571.

The product of its digits is 1800, while the sum is 26.

The square root of 1213535141 is about 34835.8312804503. The cubic root of 1213535141 is about 1066.6389837325.

Adding to 1213535141 its reverse (1415353121), we get a palindrome (2628888262).

The spelling of 1213535141 in words is "one billion, two hundred thirteen million, five hundred thirty-five thousand, one hundred forty-one".