402113293 has 2 divisors, whose sum is σ = 402113294. Its totient is φ = 402113292.

The previous prime is 402113287. The next prime is 402113311. The reversal of 402113293 is 392311204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359367849 + 42745444 = 18957^2 + 6538^2 .

It is a cyclic number.

It is not a de Polignac number, because 402113293 - 2¹³ = 402105101 is a prime.

It is equal to p_21442903 and since 402113293 and 21442903 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402113693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201056646 + 201056647.

It is an arithmetic number, because the mean of its divisors is an integer number (201056647).

Almost surely, 2^402113293 is an apocalyptic number.

It is an amenable number.

402113293 is a deficient number, since it is larger than the sum of its proper divisors (1).

402113293 is an equidigital number, since it uses as much as digits as its factorization.

402113293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 402113293 is about 20052.7627273650. The cubic root of 402113293 is about 738.1015942814.

Adding to 402113293 its reverse (392311204), we get a palindrome (794424497).

Subtracting from 402113293 its reverse (392311204), we obtain a palindrome (9802089).

The spelling of 402113293 in words is "four hundred two million, one hundred thirteen thousand, two hundred ninety-three".