1371349251541 has 2 divisors, whose sum is σ = 1371349251542. Its totient is φ = 1371349251540.

The previous prime is 1371349251539. The next prime is 1371349251551. The reversal of 1371349251541 is 1451529431731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1136750454225 + 234598797316 = 1066185^2 + 484354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1371349251541 - 2¹ = 1371349251539 is a prime.

Together with 1371349251539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1371349251491 and 1371349251500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1371349251511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685674625770 + 685674625771.

It is an arithmetic number, because the mean of its divisors is an integer number (685674625771).

Almost surely, 2^{1371349251541} is an apocalyptic number.

It is an amenable number.

1371349251541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371349251541 is an equidigital number, since it uses as much as digits as its factorization.

1371349251541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 46.

The spelling of 1371349251541 in words is "one trillion, three hundred seventy-one billion, three hundred forty-nine million, two hundred fifty-one thousand, five hundred forty-one".