1235542013 has 8 divisors (see below), whose sum is σ = 1345418400. Its totient is φ = 1130150448.

The previous prime is 1235542003. The next prime is 1235542027. The reversal of 1235542013 is 3102455321.

It is a happy number.

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 1235542013 - 2¹⁰ = 1235540989 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 (1235542003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120631 + ... + 1121732.

It is an arithmetic number, because the mean of its divisors is an integer number (168177300).

Almost surely, 2^1235542013 is an apocalyptic number.

It is an amenable number.

1235542013 is a deficient number, since it is larger than the sum of its proper divisors (109876387).

1235542013 is a wasteful number, since it uses less digits than its factorization.

1235542013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242411.

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

The square root of 1235542013 is about 35150.2775664716. The cubic root of 1235542013 is about 1073.0480570904.

Adding to 1235542013 its reverse (3102455321), we get a palindrome (4337997334).

The spelling of 1235542013 in words is "one billion, two hundred thirty-five million, five hundred forty-two thousand, thirteen".