402113 has 4 divisors (see below), whose sum is σ = 404928. Its totient is φ = 399300.

The previous prime is 402107. The next prime is 402131. The reversal of 402113 is 311204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402113 - 2⁶ = 402049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402094 and 402103.

It is not an unprimeable number, because it can be changed into a prime (402133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181 + ... + 1482.

It is an arithmetic number, because the mean of its divisors is an integer number (101232).

2⁴⁰²¹¹³ is an apocalyptic number.

It is an amenable number.

402113 is a deficient number, since it is larger than the sum of its proper divisors (2815).

402113 is a wasteful number, since it uses less digits than its factorization.

402113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 402113 is about 634.1238049466. The cubic root of 402113 is about 73.8101415009.

Adding to 402113 its reverse (311204), we get a palindrome (713317).

Subtracting from 402113 its reverse (311204), we obtain a palindrome (90909).

It can be divided in two parts, 402 and 113, that added together give a palindrome (515).

The spelling of 402113 in words is "four hundred two thousand, one hundred thirteen".