103646401 has 4 divisors (see below), whose sum is σ = 106174404. Its totient is φ = 101118400.

The previous prime is 103646393. The next prime is 103646419. The reversal of 103646401 is 104646301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25765776 + 77880625 = 5076^2 + 8825^2 .

It is a cyclic number.

It is not a de Polignac number, because 103646401 - 2³ = 103646393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103646461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263940 + ... + 1264021.

It is an arithmetic number, because the mean of its divisors is an integer number (26543601).

Almost surely, 2^103646401 is an apocalyptic number.

It is an amenable number.

103646401 is a deficient number, since it is larger than the sum of its proper divisors (2528003).

103646401 is an equidigital number, since it uses as much as digits as its factorization.

103646401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528002.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 103646401 is about 10180.6876486807. The cubic root of 103646401 is about 469.7333646837.

The spelling of 103646401 in words is "one hundred three million, six hundred forty-six thousand, four hundred one".