1115564 has 6 divisors (see below), whose sum is σ = 1952244. Its totient is φ = 557780.

The previous prime is 1115561. The next prime is 1115567. The reversal of 1115564 is 4655111.

It is an interprime number because it is at equal distance from previous prime (1115561) and next prime (1115567).

It is not an unprimeable number, because it can be changed into a prime (1115561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139442 + ... + 139449.

It is an arithmetic number, because the mean of its divisors is an integer number (325374).

2^1115564 is an apocalyptic number.

It is an amenable number.

1115564 is a deficient number, since it is larger than the sum of its proper divisors (836680).

1115564 is a wasteful number, since it uses less digits than its factorization.

1115564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278895 (or 278893 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 1115564 is about 1056.2026320740. The cubic root of 1115564 is about 103.7125940539.

It can be divided in two parts, 111556 and 4, that multiplied together give a square (446224 = 668²).

The spelling of 1115564 in words is "one million, one hundred fifteen thousand, five hundred sixty-four".