12345401 has 4 divisors (see below), whose sum is σ = 12352500. Its totient is φ = 12338304.

The previous prime is 12345397. The next prime is 12345413. The reversal of 12345401 is 10454321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2105401 + 10240000 = 1451^2 + 3200^2 .

It is a cyclic number.

It is not a de Polignac number, because 12345401 - 2² = 12345397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12345491) 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, 1025 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (3088125).

Almost surely, 2^12345401 is an apocalyptic number.

It is an amenable number.

12345401 is a deficient number, since it is larger than the sum of its proper divisors (7099).

12345401 is an equidigital number, since it uses as much as digits as its factorization.

12345401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12345401 is about 3513.6022825585. The cubic root of 12345401 is about 231.1186899036.

Adding to 12345401 its reverse (10454321), we get a palindrome (22799722).

The spelling of 12345401 in words is "twelve million, three hundred forty-five thousand, four hundred one".