143942155 has 12 divisors (see below), whose sum is σ = 200931840. Its totient is φ = 98703024.

The previous prime is 143942137. The next prime is 143942177. The reversal of 143942155 is 551249341.

It is not a de Polignac number, because 143942155 - 2¹¹ = 143940107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143942155.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293515 + ... + 294004.

It is an arithmetic number, because the mean of its divisors is an integer number (16744320).

Almost surely, 2^143942155 is an apocalyptic number.

143942155 is a deficient number, since it is larger than the sum of its proper divisors (56989685).

143942155 is an equidigital number, since it uses as much as digits as its factorization.

143942155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587538 (or 587531 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 143942155 is about 11997.5895495720. The cubic root of 143942155 is about 524.0780857449.

The spelling of 143942155 in words is "one hundred forty-three million, nine hundred forty-two thousand, one hundred fifty-five".