255402143 has 8 divisors (see below), whose sum is σ = 269503200. Its totient is φ = 241550848.

The previous prime is 255402139. The next prime is 255402167. The reversal of 255402143 is 341204552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255402143 - 2² = 255402139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255402943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60338 + ... + 64431.

It is an arithmetic number, because the mean of its divisors is an integer number (33687900).

Almost surely, 2^255402143 is an apocalyptic number.

255402143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

255402143 is a deficient number, since it is larger than the sum of its proper divisors (14101057).

255402143 is a wasteful number, since it uses less digits than its factorization.

255402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124881.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 255402143 is about 15981.3060480050. The cubic root of 255402143 is about 634.4657444440.

Adding to 255402143 its reverse (341204552), we get a palindrome (596606695).

The spelling of 255402143 in words is "two hundred fifty-five million, four hundred two thousand, one hundred forty-three".