1149564 has 24 divisors (see below), whose sum is σ = 2889040. Its totient is φ = 353664.

The previous prime is 1149559. The next prime is 1149569. The reversal of 1149564 is 4659411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1149559) and next prime (1149569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149569) 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, 3529 + ... + 3840.

2^1149564 is an apocalyptic number.

It is an amenable number.

1149564 is an abundant number, since it is smaller than the sum of its proper divisors (1739476).

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

1149564 is a wasteful number, since it uses less digits than its factorization.

1149564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7389 (or 7387 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1149564 is about 1072.1772241565. The cubic root of 1149564 is about 104.7557132770.

It can be divided in two parts, 114956 and 4, that added together give a triangular number (114960 = T₄₇₉).

The spelling of 1149564 in words is "one million, one hundred forty-nine thousand, five hundred sixty-four".