1115144 has 8 divisors (see below), whose sum is σ = 2090910. Its totient is φ = 557568.

The previous prime is 1115131. The next prime is 1115189. The reversal of 1115144 is 4415111.

It can be written as a sum of positive squares in only one way, i.e., 743044 + 372100 = 862^2 + 610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1115144² = 2487092281472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69689 + ... + 69704.

2^1115144 is an apocalyptic number.

It is an amenable number.

1115144 is a deficient number, since it is larger than the sum of its proper divisors (975766).

1115144 is a wasteful number, since it uses less digits than its factorization.

1115144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139399 (or 139395 counting only the distinct ones).

The product of its digits is 80, while the sum is 17.

The square root of 1115144 is about 1056.0037878720. The cubic root of 1115144 is about 103.6995767947.

The spelling of 1115144 in words is "one million, one hundred fifteen thousand, one hundred forty-four".