142324257 has 16 divisors (see below), whose sum is σ = 199082880. Its totient is φ = 90316800.

The previous prime is 142324249. The next prime is 142324277. The reversal of 142324257 is 752423241.

It is not a de Polignac number, because 142324257 - 2³ = 142324249 is a prime.

It is a super-3 number, since 3×142324257³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142324277) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5344 + ... + 17697.

It is an arithmetic number, because the mean of its divisors is an integer number (12442680).

Almost surely, 2^142324257 is an apocalyptic number.

It is an amenable number.

142324257 is a deficient number, since it is larger than the sum of its proper divisors (56758623).

142324257 is a wasteful number, since it uses less digits than its factorization.

142324257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23144.

The product of its digits is 13440, while the sum is 30.

The square root of 142324257 is about 11929.9730511012. The cubic root of 142324257 is about 522.1071512687.

Adding to 142324257 its reverse (752423241), we get a palindrome (894747498).

The spelling of 142324257 in words is "one hundred forty-two million, three hundred twenty-four thousand, two hundred fifty-seven".