142236345 has 16 divisors (see below), whose sum is σ = 227727360. Its totient is φ = 75809664.

The previous prime is 142236293. The next prime is 142236349. The reversal of 142236345 is 543632241.

It is not a de Polignac number, because 142236345 - 2⁸ = 142236089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142236349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38541 + ... + 42069.

It is an arithmetic number, because the mean of its divisors is an integer number (14232960).

Almost surely, 2^142236345 is an apocalyptic number.

142236345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142236345 is a deficient number, since it is larger than the sum of its proper divisors (85491015).

142236345 is a wasteful number, since it uses less digits than its factorization.

142236345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224.

The product of its digits is 17280, while the sum is 30.

The square root of 142236345 is about 11926.2879807591. The cubic root of 142236345 is about 521.9996293358. Note that the first 3 decimals are identical.

Adding to 142236345 its reverse (543632241), we get a palindrome (685868586).

The spelling of 142236345 in words is "one hundred forty-two million, two hundred thirty-six thousand, three hundred forty-five".