16142149 has 4 divisors (see below), whose sum is σ = 16346560. Its totient is φ = 15937740.

The previous prime is 16142141. The next prime is 16142167. The reversal of 16142149 is 94124161.

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 16142149 - 2³ = 16142141 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 (16142141) 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, 102087 + ... + 102244.

It is an arithmetic number, because the mean of its divisors is an integer number (4086640).

Almost surely, 2^16142149 is an apocalyptic number.

It is an amenable number.

16142149 is a deficient number, since it is larger than the sum of its proper divisors (204411).

16142149 is an equidigital number, since it uses as much as digits as its factorization.

16142149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204410.

The product of its digits is 1728, while the sum is 28.

The square root of 16142149 is about 4017.7293338402. The cubic root of 16142149 is about 252.7282463815.

The spelling of 16142149 in words is "sixteen million, one hundred forty-two thousand, one hundred forty-nine".