143420040252 has 216 divisors, whose sum is σ = 405500318496. Its totient is φ = 42585219072.

The previous prime is 143420040227. The next prime is 143420040331. The reversal of 143420040252 is 252040024341.

143420040252 is a `hidden beast` number, since 1 + 4 + 3 + 4 + 200 + 402 + 52 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31401273 + ... + 31405839.

Almost surely, 2^143420040252 is an apocalyptic number.

143420040252 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 143420040252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202750159248).

143420040252 is an abundant number, since it is smaller than the sum of its proper divisors (262080278244).

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

143420040252 is a wasteful number, since it uses less digits than its factorization.

143420040252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737 (or 4709 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 143420040252 its reverse (252040024341), we get a palindrome (395460064593).

The spelling of 143420040252 in words is "one hundred forty-three billion, four hundred twenty million, forty thousand, two hundred fifty-two".