1152021149 has 8 divisors (see below), whose sum is σ = 1159300800. Its totient is φ = 1144756800.

The previous prime is 1152021139. The next prime is 1152021187. The reversal of 1152021149 is 9411202511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152021149 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 (1152021139) 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, 172034 + ... + 178604.

It is an arithmetic number, because the mean of its divisors is an integer number (144912600).

Almost surely, 2^1152021149 is an apocalyptic number.

It is an amenable number.

1152021149 is a deficient number, since it is larger than the sum of its proper divisors (7279651).

1152021149 is an equidigital number, since it uses as much as digits as its factorization.

1152021149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1152021149 is about 33941.4370497184. The cubic root of 1152021149 is about 1048.3029726975.

The spelling of 1152021149 in words is "one billion, one hundred fifty-two million, twenty-one thousand, one hundred forty-nine".