1401449871149 has 2 divisors, whose sum is σ = 1401449871150. Its totient is φ = 1401449871148.

The previous prime is 1401449871113. The next prime is 1401449871163. The reversal of 1401449871149 is 9411789441041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1036262920900 + 365186950249 = 1017970^2 + 604307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401449871149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401449871149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401449871169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700724935574 + 700724935575.

It is an arithmetic number, because the mean of its divisors is an integer number (700724935575).

Almost surely, 2^{1401449871149} is an apocalyptic number.

It is an amenable number.

1401449871149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401449871149 is an equidigital number, since it uses as much as digits as its factorization.

1401449871149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 1401449871149 in words is "one trillion, four hundred one billion, four hundred forty-nine million, eight hundred seventy-one thousand, one hundred forty-nine".