142234005 has 32 divisors (see below), whose sum is σ = 232485120. Its totient is φ = 74234880.

The previous prime is 142233989. The next prime is 142234013. The reversal of 142234005 is 500432241.

It is not a de Polignac number, because 142234005 - 2⁴ = 142233989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 328269 + ... + 328701.

It is an arithmetic number, because the mean of its divisors is an integer number (7265160).

Almost surely, 2^142234005 is an apocalyptic number.

142234005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142234005 is a deficient number, since it is larger than the sum of its proper divisors (90251115).

142234005 is a wasteful number, since it uses less digits than its factorization.

142234005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142234005 is about 11926.1898777439. The cubic root of 142234005 is about 521.9967667626.

Adding to 142234005 its reverse (500432241), we get a palindrome (642666246).

The spelling of 142234005 in words is "one hundred forty-two million, two hundred thirty-four thousand, five".