142829569 has 4 divisors (see below), whose sum is σ = 145868544. Its totient is φ = 139790596.

The previous prime is 142829513. The next prime is 142829579. The reversal of 142829569 is 965928241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 965928241 = 241 ⋅4008001.

It is not a de Polignac number, because 142829569 - 2¹¹ = 142827521 is a prime.

It is a super-2 number, since 2×142829569² = 40800571561451522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142829579) 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, 1519417 + ... + 1519510.

It is an arithmetic number, because the mean of its divisors is an integer number (36467136).

Almost surely, 2^142829569 is an apocalyptic number.

It is an amenable number.

142829569 is a deficient number, since it is larger than the sum of its proper divisors (3038975).

142829569 is an equidigital number, since it uses as much as digits as its factorization.

142829569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038974.

The product of its digits is 311040, while the sum is 46.

The square root of 142829569 is about 11951.1325404750. The cubic root of 142829569 is about 522.7243226862.

The spelling of 142829569 in words is "one hundred forty-two million, eight hundred twenty-nine thousand, five hundred sixty-nine".