402143255 has 8 divisors (see below), whose sum is σ = 483051600. Its totient is φ = 321394816.

The previous prime is 402143213. The next prime is 402143281. The reversal of 402143255 is 552341204.

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 402143255 - 2¹⁸ = 401881111 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34370 + ... + 44559.

It is an arithmetic number, because the mean of its divisors is an integer number (60381450).

Almost surely, 2^402143255 is an apocalyptic number.

402143255 is a deficient number, since it is larger than the sum of its proper divisors (80908345).

402143255 is a wasteful number, since it uses less digits than its factorization.

402143255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79953.

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

The square root of 402143255 is about 20053.5097925525. The cubic root of 402143255 is about 738.1199261389.

Adding to 402143255 its reverse (552341204), we get a palindrome (954484459).

The spelling of 402143255 in words is "four hundred two million, one hundred forty-three thousand, two hundred fifty-five".