143955552 has 144 divisors (see below), whose sum is σ = 431645760. Its totient is φ = 41872896.

The previous prime is 143955527. The next prime is 143955557. The reversal of 143955552 is 255559341.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 143955552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143955557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308023 + ... + 308489.

It is an arithmetic number, because the mean of its divisors is an integer number (2997540).

Almost surely, 2^143955552 is an apocalyptic number.

143955552 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 143955552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215822880).

143955552 is an abundant number, since it is smaller than the sum of its proper divisors (287690208).

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

143955552 is a wasteful number, since it uses less digits than its factorization.

143955552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 504 counting only the distinct ones).

The product of its digits is 135000, while the sum is 39.

The square root of 143955552 is about 11998.1478570653. The cubic root of 143955552 is about 524.0943442581.

The spelling of 143955552 in words is "one hundred forty-three million, nine hundred fifty-five thousand, five hundred fifty-two".