142149 has 12 divisors (see below), whose sum is σ = 220704. Its totient is φ = 81144.

The previous prime is 142123. The next prime is 142151. The reversal of 142149 is 941241.

It is not a de Polignac number, because 142149 - 2⁹ = 141637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337 + ... + 630.

It is an arithmetic number, because the mean of its divisors is an integer number (18392).

2¹⁴²¹⁴⁹ is an apocalyptic number.

It is an amenable number.

142149 is a deficient number, since it is larger than the sum of its proper divisors (78555).

142149 is an equidigital number, since it uses as much as digits as its factorization.

142149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 977 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 142149 is about 377.0265242659. The cubic root of 142149 is about 52.1892756994.

The spelling of 142149 in words is "one hundred forty-two thousand, one hundred forty-nine".