1604101 has 2 divisors, whose sum is σ = 1604102. Its totient is φ = 1604100.

The previous prime is 1604093. The next prime is 1604111. The reversal of 1604101 is 1014061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1560001 + 44100 = 1249^2 + 210^2 .

It is an emirp because it is prime and its reverse (1014061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1604101 - 2³ = 1604093 is a prime.

It is equal to p₁₂₁₄₄₁ and since 1604101 and 121441 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 (1604111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802050 + 802051.

It is an arithmetic number, because the mean of its divisors is an integer number (802051).

2^1604101 is an apocalyptic number.

It is an amenable number.

1604101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604101 is an equidigital number, since it uses as much as digits as its factorization.

1604101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1604101 is about 1266.5310892355. The cubic root of 1604101 is about 117.0605525798.

Adding to 1604101 its reverse (1014061), we get a palindrome (2618162).

The spelling of 1604101 in words is "one million, six hundred four thousand, one hundred one".