1135255931 has 4 divisors (see below), whose sum is σ = 1136377632. Its totient is φ = 1134134232.

The previous prime is 1135255897. The next prime is 1135255949. The reversal of 1135255931 is 1395525311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135255931 is a prime.

It is a super-2 number, since 2×1135255931² = 2577612057741353522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1135255891 and 1135255900.

It is not an unprimeable number, because it can be changed into a prime (1135255031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559331 + ... + 561356.

It is an arithmetic number, because the mean of its divisors is an integer number (284094408).

Almost surely, 2^1135255931 is an apocalyptic number.

1135255931 is a deficient number, since it is larger than the sum of its proper divisors (1121701).

1135255931 is a wasteful number, since it uses less digits than its factorization.

1135255931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121700.

The product of its digits is 20250, while the sum is 35.

The square root of 1135255931 is about 33693.5591916319. The cubic root of 1135255931 is about 1043.1928293500.

The spelling of 1135255931 in words is "one billion, one hundred thirty-five million, two hundred fifty-five thousand, nine hundred thirty-one".