403161601 has 2 divisors, whose sum is σ = 403161602. Its totient is φ = 403161600.

The previous prime is 403161587. The next prime is 403161623. The reversal of 403161601 is 106161304.

It is a happy number.

It is an a-pointer prime, because the next prime (403161623) can be obtained adding 403161601 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401601600 + 1560001 = 20040^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 403161601 - 2¹³ = 403153409 is a prime.

It is not a weakly prime, because it can be changed into another prime (403161401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201580800 + 201580801.

It is an arithmetic number, because the mean of its divisors is an integer number (201580801).

Almost surely, 2^403161601 is an apocalyptic number.

It is an amenable number.

403161601 is a deficient number, since it is larger than the sum of its proper divisors (1).

403161601 is an equidigital number, since it uses as much as digits as its factorization.

403161601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 403161601 is about 20078.8844560648. The cubic root of 403161601 is about 738.7424471596.

The spelling of 403161601 in words is "four hundred three million, one hundred sixty-one thousand, six hundred one".