402601 has 2 divisors, whose sum is σ = 402602. Its totient is φ = 402600.

The previous prime is 402593. The next prime is 402613. The reversal of 402601 is 106204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389376 + 13225 = 624^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 402601 - 2³ = 402593 is a prime.

402601 is a lucky number.

It is equal to p₃₄₀₅₁ and since 402601 and 34051 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (402631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201300 + 201301.

It is an arithmetic number, because the mean of its divisors is an integer number (201301).

2⁴⁰²⁶⁰¹ is an apocalyptic number.

It is an amenable number.

402601 is a deficient number, since it is larger than the sum of its proper divisors (1).

402601 is an equidigital number, since it uses as much as digits as its factorization.

402601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 402601 is about 634.5084711806. The cubic root of 402601 is about 73.8399878276.

Adding to 402601 its reverse (106204), we get a palindrome (508805).

The spelling of 402601 in words is "four hundred two thousand, six hundred one".