142253253 has 10 divisors (see below), whose sum is σ = 212501894. Its totient is φ = 94835448.

The previous prime is 142253249. The next prime is 142253273. The reversal of 142253253 is 352352241.

It is a happy number.

142253253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 137311524 + 4941729 = 11718^2 + 2223^2 .

It is not a de Polignac number, because 142253253 - 2² = 142253249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142253233) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 878026 + ... + 878187.

Almost surely, 2^142253253 is an apocalyptic number.

It is an amenable number.

142253253 is a deficient number, since it is larger than the sum of its proper divisors (70248641).

142253253 is an equidigital number, since it uses as much as digits as its factorization.

142253253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756225 (or 1756216 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 142253253 is about 11926.9968139511. The cubic root of 142253253 is about 522.0203123289.

The spelling of 142253253 in words is "one hundred forty-two million, two hundred fifty-three thousand, two hundred fifty-three".