1149320855 has 8 divisors (see below), whose sum is σ = 1387970592. Its totient is φ = 913599648.

The previous prime is 1149320839. The next prime is 1149320857. The reversal of 1149320855 is 5580239411.

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 1149320855 - 2⁴ = 1149320839 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 (1149320857) 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, 731267 + ... + 732836.

It is an arithmetic number, because the mean of its divisors is an integer number (173496324).

Almost surely, 2^1149320855 is an apocalyptic number.

1149320855 is a deficient number, since it is larger than the sum of its proper divisors (238649737).

1149320855 is a wasteful number, since it uses less digits than its factorization.

1149320855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464265.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1149320855 is about 33901.6349900709. The cubic root of 1149320855 is about 1047.4832710744.

The spelling of 1149320855 in words is "one billion, one hundred forty-nine million, three hundred twenty thousand, eight hundred fifty-five".