142213423 has 24 divisors (see below), whose sum is σ = 166786560. Its totient is φ = 120206160.

The previous prime is 142213411. The next prime is 142213433. The reversal of 142213423 is 324312241.

It is not a de Polignac number, because 142213423 - 2¹⁷ = 142082351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142213394 and 142213403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142213403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233986 + ... + 234592.

It is an arithmetic number, because the mean of its divisors is an integer number (6949440).

Almost surely, 2^142213423 is an apocalyptic number.

142213423 is a deficient number, since it is larger than the sum of its proper divisors (24573137).

142213423 is a wasteful number, since it uses less digits than its factorization.

142213423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 696 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 142213423 is about 11925.3269556855. The cubic root of 142213423 is about 521.9715869994.

Adding to 142213423 its reverse (324312241), we get a palindrome (466525664).

The spelling of 142213423 in words is "one hundred forty-two million, two hundred thirteen thousand, four hundred twenty-three".