142658797 has 4 divisors (see below), whose sum is σ = 142998076. Its totient is φ = 142319520.

The previous prime is 142658779. The next prime is 142658833. The reversal of 142658797 is 797856241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67420521 + 75238276 = 8211^2 + 8674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142658797 is a prime.

It is a super-2 number, since 2×142658797² = 40703064722974418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142658797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142658297) 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, 169008 + ... + 169849.

It is an arithmetic number, because the mean of its divisors is an integer number (35749519).

Almost surely, 2^142658797 is an apocalyptic number.

It is an amenable number.

142658797 is a deficient number, since it is larger than the sum of its proper divisors (339279).

142658797 is an equidigital number, since it uses as much as digits as its factorization.

142658797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339278.

The product of its digits is 846720, while the sum is 49.

The square root of 142658797 is about 11943.9858087658. The cubic root of 142658797 is about 522.5159104760.

The spelling of 142658797 in words is "one hundred forty-two million, six hundred fifty-eight thousand, seven hundred ninety-seven".