10001401 has 2 divisors, whose sum is σ = 10001402. Its totient is φ = 10001400.

The previous prime is 10001399. The next prime is 10001419. The reversal of 10001401 is 10410001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7706176 + 2295225 = 2776^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001401 - 2¹ = 10001399 is a prime.

Together with 10001399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10001441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000700 + 5000701.

It is an arithmetic number, because the mean of its divisors is an integer number (5000701).

Almost surely, 2^10001401 is an apocalyptic number.

It is an amenable number.

10001401 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001401 is an equidigital number, since it uses as much as digits as its factorization.

10001401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 10001401 is about 3162.4991699604. The cubic root of 10001401 is about 215.4535297434.

Adding to 10001401 its reverse (10410001), we get a palindrome (20411402).

It can be divided in two parts, 1000 and 1401, that added together give a 4-th power (2401 = 7⁴).

The spelling of 10001401 in words is "ten million, one thousand, four hundred one".