142505253 has 12 divisors (see below), whose sum is σ = 224553888. Its totient is φ = 86366760.

The previous prime is 142505249. The next prime is 142505261. The reversal of 142505253 is 352505241.

It is a happy number.

It is not a de Polignac number, because 142505253 - 2² = 142505249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142505353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719625 + ... + 719822.

It is an arithmetic number, because the mean of its divisors is an integer number (18712824).

Almost surely, 2^142505253 is an apocalyptic number.

It is an amenable number.

142505253 is a deficient number, since it is larger than the sum of its proper divisors (82048635).

142505253 is a wasteful number, since it uses less digits than its factorization.

142505253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439464 (or 1439461 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 142505253 is about 11937.5564082437. The cubic root of 142505253 is about 522.3283814780.

It can be divided in two parts, 14250 and 5253, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 142505253 in words is "one hundred forty-two million, five hundred five thousand, two hundred fifty-three".