143864140 has 48 divisors (see below), whose sum is σ = 354618432. Its totient is φ = 47990016.

The previous prime is 143864137. The next prime is 143864141. The reversal of 143864140 is 41468341.

It is not an unprimeable number, because it can be changed into a prime (143864141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8707 + ... + 19066.

It is an arithmetic number, because the mean of its divisors is an integer number (7387884).

Almost surely, 2^143864140 is an apocalyptic number.

143864140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143864140 is an abundant number, since it is smaller than the sum of its proper divisors (210754292).

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

143864140 is a wasteful number, since it uses less digits than its factorization.

143864140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27826 (or 27824 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 143864140 is about 11994.3378308267. The cubic root of 143864140 is about 523.9833871935.

The spelling of 143864140 in words is "one hundred forty-three million, eight hundred sixty-four thousand, one hundred forty".