16072001 has 4 divisors (see below), whose sum is σ = 17533104. Its totient is φ = 14610900.

The previous prime is 16071989. The next prime is 16072019. The reversal of 16072001 is 10027061.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 16072001 - 2¹⁴ = 16055617 is a prime.

It is a super-2 number, since 2×16072001² = 516618432288002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16072051) 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 in 3 ways as a sum of consecutive naturals, for example, 730535 + ... + 730556.

It is an arithmetic number, because the mean of its divisors is an integer number (4383276).

Almost surely, 2^16072001 is an apocalyptic number.

16072001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16072001 is a deficient number, since it is larger than the sum of its proper divisors (1461103).

16072001 is a wasteful number, since it uses less digits than its factorization.

16072001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461102.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 16072001 is about 4008.9900224371. The cubic root of 16072001 is about 252.3616259766.

Adding to 16072001 its reverse (10027061), we get a palindrome (26099062).

The spelling of 16072001 in words is "sixteen million, seventy-two thousand, one".