142212434 has 16 divisors (see below), whose sum is σ = 262546368. Its totient is φ = 56259792.

The previous prime is 142212419. The next prime is 142212443. The reversal of 142212434 is 434212241.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390512 + ... + 390875.

It is an arithmetic number, because the mean of its divisors is an integer number (16409148).

Almost surely, 2^142212434 is an apocalyptic number.

142212434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142212434 is a deficient number, since it is larger than the sum of its proper divisors (120333934).

142212434 is a wasteful number, since it uses less digits than its factorization.

142212434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781409.

The product of its digits is 1536, while the sum is 23.

The square root of 142212434 is about 11925.2854892451. The cubic root of 142212434 is about 521.9703770079.

Adding to 142212434 its reverse (434212241), we get a palindrome (576424675).

The spelling of 142212434 in words is "one hundred forty-two million, two hundred twelve thousand, four hundred thirty-four".