143868490 has 12 divisors (see below), whose sum is σ = 259031574. Its totient is φ = 57532224.

The previous prime is 143868481. The next prime is 143868493. The reversal of 143868490 is 94868341.

It can be written as a sum of positive squares in 3 ways, for example, as 68508729 + 75359761 = 8277^2 + 8681^2 .

It is not an unprimeable number, because it can be changed into a prime (143868493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36034 + ... + 39826.

Almost surely, 2^143868490 is an apocalyptic number.

143868490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143868490 is a deficient number, since it is larger than the sum of its proper divisors (115163084).

143868490 is an frugal number, since it uses more digits than its factorization.

143868490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593 (or 3800 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 143868490 is about 11994.5191650187. The cubic root of 143868490 is about 523.9886683446.

The spelling of 143868490 in words is "one hundred forty-three million, eight hundred sixty-eight thousand, four hundred ninety".