16247142 has 20 divisors (see below), whose sum is σ = 36405996. Its totient is φ = 5415660.

The previous prime is 16247141. The next prime is 16247149. The reversal of 16247142 is 24174261.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16247141) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 49984 + ... + 50307.

Almost surely, 2^16247142 is an apocalyptic number.

16247142 is an abundant number, since it is smaller than the sum of its proper divisors (20158854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16247142 is a wasteful number, since it uses less digits than its factorization.

16247142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100305 (or 100296 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 16247142 is about 4030.7743672897. The cubic root of 16247142 is about 253.2750008045.

The spelling of 16247142 in words is "sixteen million, two hundred forty-seven thousand, one hundred forty-two".