1401149078705 has 4 divisors (see below), whose sum is σ = 1681378894452. Its totient is φ = 1120919262960.

The previous prime is 1401149078701. The next prime is 1401149078723. The reversal of 1401149078705 is 5078709411041.

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 912781516816 + 488367561889 = 955396^2 + 698833^2 .

It is not a de Polignac number, because 1401149078705 - 2² = 1401149078701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401149078705.

It is not an unprimeable number, because it can be changed into a prime (1401149078701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140114907866 + ... + 140114907875.

It is an arithmetic number, because the mean of its divisors is an integer number (420344723613).

Almost surely, 2^{1401149078705} is an apocalyptic number.

It is an amenable number.

1401149078705 is a deficient number, since it is larger than the sum of its proper divisors (280229815747).

1401149078705 is an equidigital number, since it uses as much as digits as its factorization.

1401149078705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280229815746.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 1401149078705 in words is "one trillion, four hundred one billion, one hundred forty-nine million, seventy-eight thousand, seven hundred five".