1156004 has 6 divisors (see below), whose sum is σ = 2023014. Its totient is φ = 578000.

The previous prime is 1155997. The next prime is 1156009. The reversal of 1156004 is 4006511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 996004 + 160000 = 998^2 + 400^2 .

It is not an unprimeable number, because it can be changed into a prime (1156009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144497 + ... + 144504.

It is an arithmetic number, because the mean of its divisors is an integer number (337169).

2^1156004 is an apocalyptic number.

It is an amenable number.

1156004 is a deficient number, since it is larger than the sum of its proper divisors (867010).

1156004 is a wasteful number, since it uses less digits than its factorization.

1156004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289005 (or 289003 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1156004 is about 1075.1762646190. The cubic root of 1156004 is about 104.9509672802.

It can be divided in two parts, 115600 and 4, that multiplied together give a square (462400 = 680²).

The spelling of 1156004 in words is "one million, one hundred fifty-six thousand, four".