142389269 has 16 divisors (see below), whose sum is σ = 159909120. Its totient is φ = 125664000.

The previous prime is 142389241. The next prime is 142389277. The reversal of 142389269 is 962983241.

It is not a de Polignac number, because 142389269 - 2¹⁶ = 142323733 is a prime.

It is a super-2 number, since 2×142389269² = 40549407852708722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142382269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107129 + ... + 108449.

It is an arithmetic number, because the mean of its divisors is an integer number (9994320).

Almost surely, 2^142389269 is an apocalyptic number.

It is an amenable number.

142389269 is a deficient number, since it is larger than the sum of its proper divisors (17519851).

142389269 is a wasteful number, since it uses less digits than its factorization.

142389269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its digits is 186624, while the sum is 44.

The square root of 142389269 is about 11932.6974737483. The cubic root of 142389269 is about 522.1866365789.

The spelling of 142389269 in words is "one hundred forty-two million, three hundred eighty-nine thousand, two hundred sixty-nine".