143688870 has 192 divisors, whose sum is σ = 430064640. Its totient is φ = 34100352.

The previous prime is 143688869. The next prime is 143688931. The reversal of 143688870 is 78886341.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2144577 + ... + 2144643.

It is an arithmetic number, because the mean of its divisors is an integer number (2239920).

Almost surely, 2^143688870 is an apocalyptic number.

143688870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143688870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215032320).

143688870 is an abundant number, since it is smaller than the sum of its proper divisors (286375770).

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

143688870 is a wasteful number, since it uses less digits than its factorization.

143688870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 143688870 is about 11987.0292399743. The cubic root of 143688870 is about 523.7705106809.

The spelling of 143688870 in words is "one hundred forty-three million, six hundred eighty-eight thousand, eight hundred seventy".