142494897 has 4 divisors (see below), whose sum is σ = 189993200. Its totient is φ = 94996596.

The previous prime is 142494887. The next prime is 142494917. The reversal of 142494897 is 798494241.

142494897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 142494897 - 2¹¹ = 142492849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142494827) 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, 23749147 + ... + 23749152.

It is an arithmetic number, because the mean of its divisors is an integer number (47498300).

Almost surely, 2^142494897 is an apocalyptic number.

It is an amenable number.

142494897 is a deficient number, since it is larger than the sum of its proper divisors (47498303).

142494897 is an equidigital number, since it uses as much as digits as its factorization.

142494897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47498302.

The product of its digits is 580608, while the sum is 48.

The square root of 142494897 is about 11937.1226432503. The cubic root of 142494897 is about 522.3157284619.

The spelling of 142494897 in words is "one hundred forty-two million, four hundred ninety-four thousand, eight hundred ninety-seven".