1135550131 has 4 divisors (see below), whose sum is σ = 1139968872. Its totient is φ = 1131131392.

The previous prime is 1135550123. The next prime is 1135550137. The reversal of 1135550131 is 1310555311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310555311 = 13 ⋅100811947.

It is a cyclic number.

It is not a de Polignac number, because 1135550131 - 2³ = 1135550123 is a prime.

It is a super-2 number, since 2×1135550131² = 2578948200028234322, 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 = 1135550096 and 1135550105.

It is not an unprimeable number, because it can be changed into a prime (1135550137) 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, 2208985 + ... + 2209498.

It is an arithmetic number, because the mean of its divisors is an integer number (284992218).

Almost surely, 2^1135550131 is an apocalyptic number.

1135550131 is a deficient number, since it is larger than the sum of its proper divisors (4418741).

1135550131 is an equidigital number, since it uses as much as digits as its factorization.

1135550131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418740.

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

The square root of 1135550131 is about 33697.9247283865. The cubic root of 1135550131 is about 1043.2829355585.

The spelling of 1135550131 in words is "one billion, one hundred thirty-five million, five hundred fifty thousand, one hundred thirty-one".