142421134 has 8 divisors (see below), whose sum is σ = 213692328. Its totient is φ = 71190360.

The previous prime is 142421113. The next prime is 142421143. The reversal of 142421134 is 431124241.

It is a happy number.

142421134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264 + ... + 16924.

It is an arithmetic number, because the mean of its divisors is an integer number (26711541).

Almost surely, 2^142421134 is an apocalyptic number.

142421134 is a deficient number, since it is larger than the sum of its proper divisors (71271194).

142421134 is a wasteful number, since it uses less digits than its factorization.

142421134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20210.

The product of its digits is 768, while the sum is 22.

The square root of 142421134 is about 11934.0325958998. The cubic root of 142421134 is about 522.2255866960.

Adding to 142421134 its reverse (431124241), we get a palindrome (573545375).

It can be divided in two parts, 14242 and 1134, that added together give a square (15376 = 124²).

The spelling of 142421134 in words is "one hundred forty-two million, four hundred twenty-one thousand, one hundred thirty-four".