142344331 has 2 divisors, whose sum is σ = 142344332. Its totient is φ = 142344330.

The previous prime is 142344329. The next prime is 142344361. The reversal of 142344331 is 133443241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142344331 - 2¹ = 142344329 is a prime.

It is a super-2 number, since 2×142344331² = 40523817135675122, which contains 22 as substring.

Together with 142344329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 142344296 and 142344305.

It is not a weakly prime, because it can be changed into another prime (142344361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71172165 + 71172166.

It is an arithmetic number, because the mean of its divisors is an integer number (71172166).

Almost surely, 2^142344331 is an apocalyptic number.

142344331 is a deficient number, since it is larger than the sum of its proper divisors (1).

142344331 is an equidigital number, since it uses as much as digits as its factorization.

142344331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 142344331 is about 11930.8143477300. The cubic root of 142344331 is about 522.1316968298.

Adding to 142344331 its reverse (133443241), we get a palindrome (275787572).

It can be divided in two parts, 1423 and 44331, that added together give a palindrome (45754).

The spelling of 142344331 in words is "one hundred forty-two million, three hundred forty-four thousand, three hundred thirty-one".