1154144 has 12 divisors (see below), whose sum is σ = 2272284. Its totient is φ = 577056.

The previous prime is 1154129. The next prime is 1154159. The reversal of 1154144 is 4414511.

It is an interprime number because it is at equal distance from previous prime (1154129) and next prime (1154159).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18002 + ... + 18065.

It is an arithmetic number, because the mean of its divisors is an integer number (189357).

2^1154144 is an apocalyptic number.

It is an amenable number.

1154144 is a deficient number, since it is larger than the sum of its proper divisors (1118140).

1154144 is an equidigital number, since it uses as much as digits as its factorization.

1154144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36077 (or 36069 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 1154144 is about 1074.3109419530. The cubic root of 1154144 is about 104.8946486777.

Adding to 1154144 its reverse (4414511), we get a palindrome (5568655).

It can be divided in two parts, 1154 and 144, that multiplied together give a triangular number (166176 = T₅₇₆).

The spelling of 1154144 in words is "one million, one hundred fifty-four thousand, one hundred forty-four".