142816497 has 4 divisors (see below), whose sum is σ = 190422000. Its totient is φ = 95210996.

The previous prime is 142816493. The next prime is 142816501. The reversal of 142816497 is 794618241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (142816493) and next prime (142816501).

It is a cyclic number.

It is not a de Polignac number, because 142816497 - 2² = 142816493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142816493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23802747 + ... + 23802752.

It is an arithmetic number, because the mean of its divisors is an integer number (47605500).

Almost surely, 2^142816497 is an apocalyptic number.

It is an amenable number.

142816497 is a deficient number, since it is larger than the sum of its proper divisors (47605503).

142816497 is an equidigital number, since it uses as much as digits as its factorization.

142816497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47605502.

The product of its digits is 96768, while the sum is 42.

The square root of 142816497 is about 11950.5856341855. The cubic root of 142816497 is about 522.7083753329.

The spelling of 142816497 in words is "one hundred forty-two million, eight hundred sixteen thousand, four hundred ninety-seven".