142765697 has 4 divisors (see below), whose sum is σ = 142918356. Its totient is φ = 142613040.

The previous prime is 142765673. The next prime is 142765739. The reversal of 142765697 is 796567241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796567241 = 127 ⋅6272183.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 100982401 = 6464^2 + 10049^2 .

It is a cyclic number.

It is not a de Polignac number, because 142765697 - 2¹⁰ = 142764673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142765607) 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, 74918 + ... + 76799.

It is an arithmetic number, because the mean of its divisors is an integer number (35729589).

Almost surely, 2^142765697 is an apocalyptic number.

It is an amenable number.

142765697 is a deficient number, since it is larger than the sum of its proper divisors (152659).

142765697 is an equidigital number, since it uses as much as digits as its factorization.

142765697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152658.

The product of its digits is 635040, while the sum is 47.

The square root of 142765697 is about 11948.4600262963. The cubic root of 142765697 is about 522.6463919835.

The spelling of 142765697 in words is "one hundred forty-two million, seven hundred sixty-five thousand, six hundred ninety-seven".