1155135013 has 8 divisors (see below), whose sum is σ = 1166839128. Its totient is φ = 1143489024.

The previous prime is 1155134999. The next prime is 1155135017. The reversal of 1155135013 is 3105315511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 109453444 + 1045681569 = 10462^2 + 32337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155135013 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 (1155135017) 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, 25981 + ... + 54637.

It is an arithmetic number, because the mean of its divisors is an integer number (145854891).

Almost surely, 2^1155135013 is an apocalyptic number.

It is an amenable number.

1155135013 is a deficient number, since it is larger than the sum of its proper divisors (11704115).

1155135013 is a wasteful number, since it uses less digits than its factorization.

1155135013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29063.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1155135013 is about 33987.2772225137. The cubic root of 1155135013 is about 1049.2466290519.

It can be divided in two parts, 11551 and 35013, that added together give a palindrome (46564).

The spelling of 1155135013 in words is "one billion, one hundred fifty-five million, one hundred thirty-five thousand, thirteen".