142918497 has 12 divisors (see below), whose sum is σ = 211473444. Its totient is φ = 92954880.

The previous prime is 142918487. The next prime is 142918553. The reversal of 142918497 is 794819241.

It is a happy number.

142918497 is a `hidden beast` number, since 142 + 9 + 18 + 497 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61214976 + 81703521 = 7824^2 + 9039^2 .

It is not a de Polignac number, because 142918497 - 2¹⁰ = 142917473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142918487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193288 + ... + 194025.

It is an arithmetic number, because the mean of its divisors is an integer number (17622787).

Almost surely, 2^142918497 is an apocalyptic number.

It is an amenable number.

142918497 is a deficient number, since it is larger than the sum of its proper divisors (68554947).

142918497 is a wasteful number, since it uses less digits than its factorization.

142918497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387360 (or 387357 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 142918497 is about 11954.8524457644. The cubic root of 142918497 is about 522.8327857186.

The spelling of 142918497 in words is "one hundred forty-two million, nine hundred eighteen thousand, four hundred ninety-seven".