12004537 has 2 divisors, whose sum is σ = 12004538. Its totient is φ = 12004536.

The previous prime is 12004529. The next prime is 12004543. The reversal of 12004537 is 73540021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10394176 + 1610361 = 3224^2 + 1269^2 .

It is a cyclic number.

It is not a de Polignac number, because 12004537 - 2³ = 12004529 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002268 + 6002269.

It is an arithmetic number, because the mean of its divisors is an integer number (6002269).

Almost surely, 2^12004537 is an apocalyptic number.

It is an amenable number.

12004537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12004537 is an equidigital number, since it uses as much as digits as its factorization.

12004537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12004537 is about 3464.7564127944. The cubic root of 12004537 is about 228.9716980336.

Adding to 12004537 its reverse (73540021), we get a palindrome (85544558).

The spelling of 12004537 in words is "twelve million, four thousand, five hundred thirty-seven".