1151551133 has 8 divisors (see below), whose sum is σ = 1180090296. Its totient is φ = 1123033600.

The previous prime is 1151551127. The next prime is 1151551147. The reversal of 1151551133 is 3311551511.

It can be written as a sum of positive squares in 4 ways, for example, as 82391929 + 1069159204 = 9077^2 + 32698^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1151551133 - 2⁸ = 1151550877 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 (1151551123) 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, 178085 + ... + 184437.

It is an arithmetic number, because the mean of its divisors is an integer number (147511287).

Almost surely, 2^1151551133 is an apocalyptic number.

It is an amenable number.

1151551133 is a deficient number, since it is larger than the sum of its proper divisors (28539163).

1151551133 is an equidigital number, since it uses as much as digits as its factorization.

1151551133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10815.

The product of its digits is 1125, while the sum is 26.

The square root of 1151551133 is about 33934.5124173017. The cubic root of 1151551133 is about 1048.1603867174.

The spelling of 1151551133 in words is "one billion, one hundred fifty-one million, five hundred fifty-one thousand, one hundred thirty-three".