143769132 has 72 divisors (see below), whose sum is σ = 395531136. Its totient is φ = 43766784.

The previous prime is 143769121. The next prime is 143769133. The reversal of 143769132 is 231967341.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (143769133) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 43813 + ... + 46979.

It is an arithmetic number, because the mean of its divisors is an integer number (5493488).

Almost surely, 2^143769132 is an apocalyptic number.

143769132 is a gapful number since it is divisible by the number (12) 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 143769132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197765568).

143769132 is an abundant number, since it is smaller than the sum of its proper divisors (251762004).

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

143769132 is a wasteful number, since it uses less digits than its factorization.

143769132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287 (or 3282 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 143769132 is about 11990.3766412903. The cubic root of 143769132 is about 523.8680154349.

The spelling of 143769132 in words is "one hundred forty-three million, seven hundred sixty-nine thousand, one hundred thirty-two".