1149469056 has 160 divisors (see below), whose sum is σ = 3539685600. Its totient is φ = 369847296.

The previous prime is 1149469033. The next prime is 1149469081. The reversal of 1149469056 is 6509649411.

It is a happy number.

It is a super-2 number, since 2×1149469056² = 2642558221403062272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 298761 + ... + 302583.

It is an arithmetic number, because the mean of its divisors is an integer number (22123035).

Almost surely, 2^1149469056 is an apocalyptic number.

1149469056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149469056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769842800).

1149469056 is an abundant number, since it is smaller than the sum of its proper divisors (2390216544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149469056 is an equidigital number, since it uses as much as digits as its factorization.

1149469056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1149469056 is about 33903.8206696531. The cubic root of 1149469056 is about 1047.5282922698.

The spelling of 1149469056 in words is "one billion, one hundred forty-nine million, four hundred sixty-nine thousand, fifty-six".