142885450 has 12 divisors (see below), whose sum is σ = 265767030. Its totient is φ = 57154160.

The previous prime is 142885447. The next prime is 142885469. The reversal of 142885450 is 54588241.

It can be written as a sum of positive squares in 3 ways, for example, as 133194681 + 9690769 = 11541^2 + 3113^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1428805 + ... + 1428904.

Almost surely, 2^142885450 is an apocalyptic number.

142885450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142885450 is a deficient number, since it is larger than the sum of its proper divisors (122881580).

142885450 is a wasteful number, since it uses less digits than its factorization.

142885450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857721 (or 2857716 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 142885450 is about 11953.4702074335. The cubic root of 142885450 is about 522.7924844575.

The spelling of 142885450 in words is "one hundred forty-two million, eight hundred eighty-five thousand, four hundred fifty".