1139504 has 20 divisors (see below), whose sum is σ = 2224560. Its totient is φ = 565440.

The previous prime is 1139503. The next prime is 1139519. The reversal of 1139504 is 4059311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1139504.

It is not an unprimeable number, because it can be changed into a prime (1139503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3509 + ... + 3819.

It is an arithmetic number, because the mean of its divisors is an integer number (111228).

2^1139504 is an apocalyptic number.

It is an amenable number.

1139504 is a deficient number, since it is larger than the sum of its proper divisors (1085056).

1139504 is a wasteful number, since it uses less digits than its factorization.

1139504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1139504 is about 1067.4755266515. The cubic root of 1139504 is about 104.4492400930.

It can be divided in two parts, 1139 and 504, that multiplied together give a triangular number (574056 = T₁₀₇₁).

The spelling of 1139504 in words is "one million, one hundred thirty-nine thousand, five hundred four".