15730001 has 4 divisors (see below), whose sum is σ = 17977152. Its totient is φ = 13482852.

The previous prime is 15729997. The next prime is 15730003. The reversal of 15730001 is 10003751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10003751 = 107 ⋅93493.

It is a cyclic number.

It is not a de Polignac number, because 15730001 - 2² = 15729997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15730003) 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, 1123565 + ... + 1123578.

It is an arithmetic number, because the mean of its divisors is an integer number (4494288).

Almost surely, 2^15730001 is an apocalyptic number.

It is an amenable number.

15730001 is a deficient number, since it is larger than the sum of its proper divisors (2247151).

15730001 is an equidigital number, since it uses as much as digits as its factorization.

15730001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247150.

The product of its (nonzero) digits is 105, while the sum is 17.

The square root of 15730001 is about 3966.1065290786. The cubic root of 15730001 is about 250.5587555718.

Adding to 15730001 its reverse (10003751), we get a palindrome (25733752).

The spelling of 15730001 in words is "fifteen million, seven hundred thirty thousand, one".