1401243141 has 16 divisors (see below), whose sum is σ = 2034475200. Its totient is φ = 854477568.

The previous prime is 1401243133. The next prime is 1401243187. The reversal of 1401243141 is 1413421041.

It is not a de Polignac number, because 1401243141 - 2³ = 1401243133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401243131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422196 + ... + 425501.

It is an arithmetic number, because the mean of its divisors is an integer number (127154700).

Almost surely, 2^1401243141 is an apocalyptic number.

It is an amenable number.

1401243141 is a deficient number, since it is larger than the sum of its proper divisors (633232059).

1401243141 is a wasteful number, since it uses less digits than its factorization.

1401243141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847748.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1401243141 is about 37433.1823520256. The cubic root of 1401243141 is about 1119.0199603359.

Adding to 1401243141 its reverse (1413421041), we get a palindrome (2814664182).

The spelling of 1401243141 in words is "one billion, four hundred one million, two hundred forty-three thousand, one hundred forty-one".