2152004 has 6 divisors (see below), whose sum is σ = 3766014. Its totient is φ = 1076000.

The previous prime is 2152001. The next prime is 2152009. The reversal of 2152004 is 4002512.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 806404 = 1160^2 + 898^2 .

It is a super-2 number, since 2×2152004² = 9262242432032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2152004.

It is not an unprimeable number, because it can be changed into a prime (2152001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268997 + ... + 269004.

It is an arithmetic number, because the mean of its divisors is an integer number (627669).

2^2152004 is an apocalyptic number.

It is an amenable number.

2152004 is a deficient number, since it is larger than the sum of its proper divisors (1614010).

2152004 is a wasteful number, since it uses less digits than its factorization.

2152004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538005 (or 538003 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2152004 is about 1466.9710290255. The cubic root of 2152004 is about 129.1063762102.

Adding to 2152004 its reverse (4002512), we get a palindrome (6154516).

It can be divided in two parts, 21 and 52004, that added together give a palindrome (52025).

The spelling of 2152004 in words is "two million, one hundred fifty-two thousand, four".