142134349 has 24 divisors (see below), whose sum is σ = 172171008. Its totient is φ = 116867520.

The previous prime is 142134341. The next prime is 142134361. The reversal of 142134349 is 943431241.

It is not a de Polignac number, because 142134349 - 2³ = 142134341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142134349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142134341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207762 + ... + 208444.

It is an arithmetic number, because the mean of its divisors is an integer number (7173792).

Almost surely, 2^142134349 is an apocalyptic number.

It is an amenable number.

142134349 is a deficient number, since it is larger than the sum of its proper divisors (30036659).

142134349 is a wasteful number, since it uses less digits than its factorization.

142134349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 858 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 142134349 is about 11922.0111139019. The cubic root of 142134349 is about 521.8748262468.

The spelling of 142134349 in words is "one hundred forty-two million, one hundred thirty-four thousand, three hundred forty-nine".