402135223 has 8 divisors (see below), whose sum is σ = 460466048. Its totient is φ = 344025144.

The previous prime is 402135179. The next prime is 402135259. The reversal of 402135223 is 322531204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402135223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402135194 and 402135203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402135523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51261 + ... + 58582.

It is an arithmetic number, because the mean of its divisors is an integer number (57558256).

Almost surely, 2^402135223 is an apocalyptic number.

402135223 is a deficient number, since it is larger than the sum of its proper divisors (58330825).

402135223 is a wasteful number, since it uses less digits than its factorization.

402135223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110373.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 402135223 is about 20053.3095273573. The cubic root of 402135223 is about 738.1150119541.

Adding to 402135223 its reverse (322531204), we get a palindrome (724666427).

The spelling of 402135223 in words is "four hundred two million, one hundred thirty-five thousand, two hundred twenty-three".