1401143328253 has 4 divisors (see below), whose sum is σ = 1401211894428. Its totient is φ = 1401074762080.

The previous prime is 1401143328181. The next prime is 1401143328269. The reversal of 1401143328253 is 3528233411041.

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 1333500681529 + 67642646724 = 1154773^2 + 260082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401143328253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401143328283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34252426 + ... + 34293307.

It is an arithmetic number, because the mean of its divisors is an integer number (350302973607).

Almost surely, 2^{1401143328253} is an apocalyptic number.

It is an amenable number.

1401143328253 is a deficient number, since it is larger than the sum of its proper divisors (68566175).

1401143328253 is an equidigital number, since it uses as much as digits as its factorization.

1401143328253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68566174.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 1401143328253 its reverse (3528233411041), we get a palindrome (4929376739294).

The spelling of 1401143328253 in words is "one trillion, four hundred one billion, one hundred forty-three million, three hundred twenty-eight thousand, two hundred fifty-three".