1400401322549 has 2 divisors, whose sum is σ = 1400401322550. Its totient is φ = 1400401322548.

The previous prime is 1400401322413. The next prime is 1400401322561. The reversal of 1400401322549 is 9452231040041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 834473115025 + 565928207524 = 913495^2 + 752282^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400401322549 - 2²⁰ = 1400400273973 is a prime.

It is a super-2 number, since 2×1400401322549² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400401322599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700200661274 + 700200661275.

It is an arithmetic number, because the mean of its divisors is an integer number (700200661275).

Almost surely, 2^{1400401322549} is an apocalyptic number.

It is an amenable number.

1400401322549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400401322549 is an equidigital number, since it uses as much as digits as its factorization.

1400401322549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 1400401322549 in words is "one trillion, four hundred billion, four hundred one million, three hundred twenty-two thousand, five hundred forty-nine".