1151133655 has 8 divisors (see below), whose sum is σ = 1578697632. Its totient is φ = 789348768.

The previous prime is 1151133611. The next prime is 1151133661. The reversal of 1151133655 is 5563311511.

It is a happy number.

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 1151133655 - 2²¹ = 1149036503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16444732 + ... + 16444801.

It is an arithmetic number, because the mean of its divisors is an integer number (197337204).

Almost surely, 2^1151133655 is an apocalyptic number.

1151133655 is a deficient number, since it is larger than the sum of its proper divisors (427563977).

1151133655 is an equidigital number, since it uses as much as digits as its factorization.

1151133655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32889545.

The product of its digits is 6750, while the sum is 31.

The square root of 1151133655 is about 33928.3606294203. The cubic root of 1151133655 is about 1048.0337063412.

The spelling of 1151133655 in words is "one billion, one hundred fifty-one million, one hundred thirty-three thousand, six hundred fifty-five".