1506004 has 6 divisors (see below), whose sum is σ = 2635514. Its totient is φ = 753000.

The previous prime is 1505993. The next prime is 1506007. The reversal of 1506004 is 4006051.

It can be written as a sum of positive squares in only one way, i.e., 1214404 + 291600 = 1102^2 + 540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1506007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188247 + ... + 188254.

2^1506004 is an apocalyptic number.

It is an amenable number.

1506004 is a deficient number, since it is larger than the sum of its proper divisors (1129510).

1506004 is a wasteful number, since it uses less digits than its factorization.

1506004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376505 (or 376503 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1506004 is about 1227.1935462673. The cubic root of 1506004 is about 114.6239512491.

The spelling of 1506004 in words is "one million, five hundred six thousand, four".