1401133401 has 12 divisors (see below), whose sum is σ = 2035560228. Its totient is φ = 928688544.

The previous prime is 1401133373. The next prime is 1401133423. The reversal of 1401133401 is 1043311041.

It can be written as a sum of positive squares in 2 ways, for example, as 743980176 + 657153225 = 27276^2 + 25635^2 .

It is not a de Polignac number, because 1401133401 - 2⁵ = 1401133369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401133451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448390 + ... + 451503.

It is an arithmetic number, because the mean of its divisors is an integer number (169630019).

Almost surely, 2^1401133401 is an apocalyptic number.

It is an amenable number.

1401133401 is a deficient number, since it is larger than the sum of its proper divisors (634426827).

1401133401 is a wasteful number, since it uses less digits than its factorization.

1401133401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900072 (or 900069 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1401133401 is about 37431.7165115360. The cubic root of 1401133401 is about 1118.9907471197.

Adding to 1401133401 its reverse (1043311041), we get a palindrome (2444444442).

The spelling of 1401133401 in words is "one billion, four hundred one million, one hundred thirty-three thousand, four hundred one".