1401564502241 has 4 divisors (see below), whose sum is σ = 1401608718084. Its totient is φ = 1401520286400.

The previous prime is 1401564502229. The next prime is 1401564502243. The reversal of 1401564502241 is 1422054651041.

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 367114810000 + 1034449692241 = 605900^2 + 1017079^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401564502241 - 2¹⁴ = 1401564485857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1401564502243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22060340 + ... + 22123781.

It is an arithmetic number, because the mean of its divisors is an integer number (350402179521).

Almost surely, 2^{1401564502241} is an apocalyptic number.

It is an amenable number.

1401564502241 is a deficient number, since it is larger than the sum of its proper divisors (44215843).

1401564502241 is an equidigital number, since it uses as much as digits as its factorization.

1401564502241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44215842.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 1401564502241 in words is "one trillion, four hundred one billion, five hundred sixty-four million, five hundred two thousand, two hundred forty-one".