1133215155 has 48 divisors (see below), whose sum is σ = 2084097600. Its totient is φ = 567650304.

The previous prime is 1133215147. The next prime is 1133215177. The reversal of 1133215155 is 5515123311.

1133215155 is a `hidden beast` number, since 113 + 32 + 1 + 515 + 5 = 666.

It is not a de Polignac number, because 1133215155 - 2³ = 1133215147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 456999 + ... + 459471.

It is an arithmetic number, because the mean of its divisors is an integer number (43418700).

Almost surely, 2^1133215155 is an apocalyptic number.

1133215155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1133215155 is a deficient number, since it is larger than the sum of its proper divisors (950882445).

1133215155 is a wasteful number, since it uses less digits than its factorization.

1133215155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100 (or 3097 counting only the distinct ones).

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

The square root of 1133215155 is about 33663.2612056527. The cubic root of 1133215155 is about 1042.5673610356.

Adding to 1133215155 its reverse (5515123311), we get a palindrome (6648338466).

The spelling of 1133215155 in words is "one billion, one hundred thirty-three million, two hundred fifteen thousand, one hundred fifty-five".