16271949 has 4 divisors (see below), whose sum is σ = 21695936. Its totient is φ = 10847964.

The previous prime is 16271939. The next prime is 16271953. The reversal of 16271949 is 94917261.

16271949 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 16271949 - 2¹⁶ = 16206413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16271909) 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, 2711989 + ... + 2711994.

It is an arithmetic number, because the mean of its divisors is an integer number (5423984).

Almost surely, 2^16271949 is an apocalyptic number.

It is an amenable number.

16271949 is a deficient number, since it is larger than the sum of its proper divisors (5423987).

16271949 is an equidigital number, since it uses as much as digits as its factorization.

16271949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423986.

The product of its digits is 27216, while the sum is 39.

The square root of 16271949 is about 4033.8503938545. The cubic root of 16271949 is about 253.4038398319.

The spelling of 16271949 in words is "sixteen million, two hundred seventy-one thousand, nine hundred forty-nine".