143967990 has 16 divisors (see below), whose sum is σ = 345523248. Its totient is φ = 38391456.

The previous prime is 143967973. The next prime is 143968001. The reversal of 143967990 is 99769341.

143967990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2399437 + ... + 2399496.

It is an arithmetic number, because the mean of its divisors is an integer number (21595203).

Almost surely, 2^143967990 is an apocalyptic number.

143967990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143967990 is an abundant number, since it is smaller than the sum of its proper divisors (201555258).

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

143967990 is a wasteful number, since it uses less digits than its factorization.

143967990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798943.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 143967990 is about 11998.6661758714. Note that the first 3 decimals coincide. The cubic root of 143967990 is about 524.1094380321.

The spelling of 143967990 in words is "one hundred forty-three million, nine hundred sixty-seven thousand, nine hundred ninety".