143980155 has 24 divisors (see below), whose sum is σ = 272254320. Its totient is φ = 69808320.

The previous prime is 143980103. The next prime is 143980159. The reversal of 143980155 is 551089341.

It is not a de Polignac number, because 143980155 - 2¹⁶ = 143914619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143980159) 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, 144940 + ... + 145929.

It is an arithmetic number, because the mean of its divisors is an integer number (11343930).

Almost surely, 2^143980155 is an apocalyptic number.

143980155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

143980155 is a deficient number, since it is larger than the sum of its proper divisors (128274165).

143980155 is a wasteful number, since it uses less digits than its factorization.

143980155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290891 (or 290888 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 143980155 is about 11999.1730965096. The cubic root of 143980155 is about 524.1241996740.

The spelling of 143980155 in words is "one hundred forty-three million, nine hundred eighty thousand, one hundred fifty-five".