142314493 has 2 divisors, whose sum is σ = 142314494. Its totient is φ = 142314492.

The previous prime is 142314467. The next prime is 142314509. The reversal of 142314493 is 394413241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131836324 + 10478169 = 11482^2 + 3237^2 .

It is an emirp because it is prime and its reverse (394413241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142314493 - 2⁵ = 142314461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148314493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71157246 + 71157247.

It is an arithmetic number, because the mean of its divisors is an integer number (71157247).

Almost surely, 2^142314493 is an apocalyptic number.

It is an amenable number.

142314493 is a deficient number, since it is larger than the sum of its proper divisors (1).

142314493 is an equidigital number, since it uses as much as digits as its factorization.

142314493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 142314493 is about 11929.5638227053. The cubic root of 142314493 is about 522.0952114656.

The spelling of 142314493 in words is "one hundred forty-two million, three hundred fourteen thousand, four hundred ninety-three".