142253250 has 32 divisors (see below), whose sum is σ = 355065984. Its totient is φ = 37934000.

The previous prime is 142253249. The next prime is 142253273. The reversal of 142253250 is 52352241.

It is a self number, because there is not a number n which added to its sum of digits gives 142253250.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94086 + ... + 95585.

It is an arithmetic number, because the mean of its divisors is an integer number (11095812).

Almost surely, 2^142253250 is an apocalyptic number.

142253250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142253250 is an abundant number, since it is smaller than the sum of its proper divisors (212812734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142253250 is a wasteful number, since it uses less digits than its factorization.

142253250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189691 (or 189681 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 142253250 is about 11926.9966881860. The cubic root of 142253250 is about 522.0203086592.

The spelling of 142253250 in words is "one hundred forty-two million, two hundred fifty-three thousand, two hundred fifty".