142312441 has 2 divisors, whose sum is σ = 142312442. Its totient is φ = 142312440.

The previous prime is 142312427. The next prime is 142312447. The reversal of 142312441 is 144213241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100580841 + 41731600 = 10029^2 + 6460^2 .

It is an emirp because it is prime and its reverse (144213241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142312441 - 2¹³ = 142304249 is a prime.

It is not a weakly prime, because it can be changed into another prime (142312447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71156220 + 71156221.

It is an arithmetic number, because the mean of its divisors is an integer number (71156221).

Almost surely, 2^142312441 is an apocalyptic number.

It is an amenable number.

142312441 is a deficient number, since it is larger than the sum of its proper divisors (1).

142312441 is an equidigital number, since it uses as much as digits as its factorization.

142312441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 22.

The square root of 142312441 is about 11929.4778175744. The cubic root of 142312441 is about 522.0927021299.

Adding to 142312441 its reverse (144213241), we get a palindrome (286525682).

The spelling of 142312441 in words is "one hundred forty-two million, three hundred twelve thousand, four hundred forty-one".