143391120 has 80 divisors (see below), whose sum is σ = 458875392. Its totient is φ = 37002240.

The previous prime is 143391113. The next prime is 143391137. The reversal of 143391120 is 21193341.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×143391120² = 41122026589708800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197 + ... + 17076.

Almost surely, 2^143391120 is an apocalyptic number.

143391120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143391120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229437696).

143391120 is an abundant number, since it is smaller than the sum of its proper divisors (315484272).

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

143391120 is a wasteful number, since it uses less digits than its factorization.

143391120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19320 (or 19314 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 143391120 is about 11974.6031249474. The cubic root of 143391120 is about 523.4084772710.

The spelling of 143391120 in words is "one hundred forty-three million, three hundred ninety-one thousand, one hundred twenty".