142449250 has 16 divisors (see below), whose sum is σ = 266665464. Its totient is φ = 56979600.

The previous prime is 142449227. The next prime is 142449271. The reversal of 142449250 is 52944241.

142449250 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 4 ways, for example, as 15233409 + 127215841 = 3903^2 + 11279^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284649 + ... + 285148.

Almost surely, 2^142449250 is an apocalyptic number.

142449250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142449250 is a deficient number, since it is larger than the sum of its proper divisors (124216214).

142449250 is an equidigital number, since it uses as much as digits as its factorization.

142449250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569814 (or 569804 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 142449250 is about 11935.2105134346. The cubic root of 142449250 is about 522.2599494062.

The spelling of 142449250 in words is "one hundred forty-two million, four hundred forty-nine thousand, two hundred fifty".