16072091 has 8 divisors (see below), whose sum is σ = 18715104. Its totient is φ = 13515840.

The previous prime is 16072051. The next prime is 16072093. The reversal of 16072091 is 19027061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16072091 - 2¹⁴ = 16055707 is a prime.

It is a super-2 number, since 2×16072091² = 516624218224562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16072091.

It is not an unprimeable number, because it can be changed into a prime (16072093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21290 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (2339388).

Almost surely, 2^16072091 is an apocalyptic number.

16072091 is a deficient number, since it is larger than the sum of its proper divisors (2643013).

16072091 is an equidigital number, since it uses as much as digits as its factorization.

16072091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43381.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 16072091 is about 4009.0012471936. The cubic root of 16072091 is about 252.3620970340.

The spelling of 16072091 in words is "sixteen million, seventy-two thousand, ninety-one".