142277697 has 6 divisors (see below), whose sum is σ = 205512242. Its totient is φ = 94851792.

The previous prime is 142277689. The next prime is 142277713. The reversal of 142277697 is 796772241.

142277697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 136328976 + 5948721 = 11676^2 + 2439^2 .

It is not a de Polignac number, because 142277697 - 2³ = 142277689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142277297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7904308 + ... + 7904325.

Almost surely, 2^142277697 is an apocalyptic number.

It is an amenable number.

142277697 is a deficient number, since it is larger than the sum of its proper divisors (63234545).

142277697 is a wasteful number, since it uses less digits than its factorization.

142277697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15808639 (or 15808636 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 142277697 is about 11928.0215040048. The cubic root of 142277697 is about 522.0502109626.

The spelling of 142277697 in words is "one hundred forty-two million, two hundred seventy-seven thousand, six hundred ninety-seven".