15712001 has 2 divisors, whose sum is σ = 15712002. Its totient is φ = 15712000.

The previous prime is 15711991. The next prime is 15712007. The reversal of 15712001 is 10021751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14554225 + 1157776 = 3815^2 + 1076^2 .

It is a cyclic number.

It is not a de Polignac number, because 15712001 - 2²² = 11517697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15712007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7856000 + 7856001.

It is an arithmetic number, because the mean of its divisors is an integer number (7856001).

Almost surely, 2^15712001 is an apocalyptic number.

It is an amenable number.

15712001 is a deficient number, since it is larger than the sum of its proper divisors (1).

15712001 is an equidigital number, since it uses as much as digits as its factorization.

15712001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 15712001 is about 3963.8366515284. The cubic root of 15712001 is about 250.4631467837.

Adding to 15712001 its reverse (10021751), we get a palindrome (25733752).

The spelling of 15712001 in words is "fifteen million, seven hundred twelve thousand, one".