1123551135 has 96 divisors (see below), whose sum is σ = 2398924800. Its totient is φ = 496964160.

The previous prime is 1123551119. The next prime is 1123551151. The reversal of 1123551135 is 5311553211.

1123551135 is a `hidden beast` number, since 112 + 3 + 5 + 511 + 35 = 666.

It is an interprime number because it is at equal distance from previous prime (1123551119) and next prime (1123551151).

It is not a de Polignac number, because 1123551135 - 2⁴ = 1123551119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1123551099 and 1123551108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 202326 + ... + 207804.

It is an arithmetic number, because the mean of its divisors is an integer number (24988800).

Almost surely, 2^1123551135 is an apocalyptic number.

1123551135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123551135 is an abundant number, since it is smaller than the sum of its proper divisors (1275373665).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123551135 is a wasteful number, since it uses less digits than its factorization.

1123551135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538 (or 5525 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 1123551135 is about 33519.4142997756. The cubic root of 1123551135 is about 1039.5952366575.

The spelling of 1123551135 in words is "one billion, one hundred twenty-three million, five hundred fifty-one thousand, one hundred thirty-five".