16243801 has 4 divisors (see below), whose sum is σ = 18564352. Its totient is φ = 13923252.

The previous prime is 16243793. The next prime is 16243813. The reversal of 16243801 is 10834261.

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 not a de Polignac number, because 16243801 - 2³ = 16243793 is a prime.

It is a super-2 number, since 2×16243801² = 527722141855202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16243861) 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, 1160265 + ... + 1160278.

It is an arithmetic number, because the mean of its divisors is an integer number (4641088).

Almost surely, 2^16243801 is an apocalyptic number.

It is an amenable number.

16243801 is a deficient number, since it is larger than the sum of its proper divisors (2320551).

16243801 is an equidigital number, since it uses as much as digits as its factorization.

16243801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320550.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 16243801 is about 4030.3599094870. The cubic root of 16243801 is about 253.2576387810.

The spelling of 16243801 in words is "sixteen million, two hundred forty-three thousand, eight hundred one".