142345269 has 64 divisors (see below), whose sum is σ = 239151360. Its totient is φ = 83980800.

The previous prime is 142345261. The next prime is 142345303. The reversal of 142345269 is 962543241.

It is a happy number.

142345269 is a `hidden beast` number, since 142 + 3 + 452 + 69 = 666.

It is not a de Polignac number, because 142345269 - 2³ = 142345261 is a prime.

It is a super-2 number, since 2×142345269² = 40524351213364722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142345261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1467429 + ... + 1467525.

It is an arithmetic number, because the mean of its divisors is an integer number (3736740).

Almost surely, 2^142345269 is an apocalyptic number.

It is an amenable number.

142345269 is a deficient number, since it is larger than the sum of its proper divisors (96806091).

142345269 is an frugal number, since it uses more digits than its factorization.

142345269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 172 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 142345269 is about 11930.8536576391. The cubic root of 142345269 is about 522.1328437165.

It can be divided in two parts, 14234 and 5269, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 142345269 in words is "one hundred forty-two million, three hundred forty-five thousand, two hundred sixty-nine".