1544022132397 has 2 divisors, whose sum is σ = 1544022132398. Its totient is φ = 1544022132396.

The previous prime is 1544022132377. The next prime is 1544022132431. The reversal of 1544022132397 is 7932312204451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 943008019396 + 601014113001 = 971086^2 + 775251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1544022132397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1544022132377) 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 as a sum of consecutive naturals, namely, 772011066198 + 772011066199.

It is an arithmetic number, because the mean of its divisors is an integer number (772011066199).

Almost surely, 2^{1544022132397} is an apocalyptic number.

It is an amenable number.

1544022132397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1544022132397 is an equidigital number, since it uses as much as digits as its factorization.

1544022132397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 1544022132397 in words is "one trillion, five hundred forty-four billion, twenty-two million, one hundred thirty-two thousand, three hundred ninety-seven".