1401353541 has 24 divisors (see below), whose sum is σ = 2399027904. Its totient is φ = 800772480.

The previous prime is 1401353521. The next prime is 1401353561. The reversal of 1401353541 is 1453531041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1401353521) and next prime (1401353561).

It is not a de Polignac number, because 1401353541 - 2⁵ = 1401353509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401353501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410220 + ... + 413621.

It is an arithmetic number, because the mean of its divisors is an integer number (99959496).

Almost surely, 2^1401353541 is an apocalyptic number.

It is an amenable number.

1401353541 is a deficient number, since it is larger than the sum of its proper divisors (997674363).

1401353541 is an frugal number, since it uses more digits than its factorization.

1401353541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823863 (or 823851 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1401353541 is about 37434.6569504784. The cubic root of 1401353541 is about 1119.0493477077.

Adding to 1401353541 its reverse (1453531041), we get a palindrome (2854884582).

The spelling of 1401353541 in words is "one billion, four hundred one million, three hundred fifty-three thousand, five hundred forty-one".