12510401 has 6 divisors (see below), whose sum is σ = 12614706. Its totient is φ = 12406800.

The previous prime is 12510373. The next prime is 12510409. The reversal of 12510401 is 10401521.

It can be written as a sum of positive squares in only one way, i.e., 11397376 + 1113025 = 3376^2 + 1055^2 .

It is not a de Polignac number, because 12510401 - 2¹⁰ = 12509377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12510409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44381 + ... + 44661.

It is an arithmetic number, because the mean of its divisors is an integer number (2102451).

Almost surely, 2^12510401 is an apocalyptic number.

It is an amenable number.

12510401 is a deficient number, since it is larger than the sum of its proper divisors (104305).

12510401 is an frugal number, since it uses more digits than its factorization.

12510401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12510401 is about 3537.0045236047. The cubic root of 12510401 is about 232.1437933893.

Adding to 12510401 its reverse (10401521), we get a palindrome (22911922).

The spelling of 12510401 in words is "twelve million, five hundred ten thousand, four hundred one".