1371125721541 has 8 divisors (see below), whose sum is σ = 1403065436960. Its totient is φ = 1339188418512.

The previous prime is 1371125721481. The next prime is 1371125721557. The reversal of 1371125721541 is 1451275211731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1371125721541 - 2²¹ = 1371123624389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1371125721494 and 1371125721503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371125721241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573295 + ... + 1752403.

It is an arithmetic number, because the mean of its divisors is an integer number (175383179620).

Almost surely, 2^{1371125721541} is an apocalyptic number.

It is an amenable number.

1371125721541 is a deficient number, since it is larger than the sum of its proper divisors (31939715419).

1371125721541 is a wasteful number, since it uses less digits than its factorization.

1371125721541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206195.

The product of its digits is 58800, while the sum is 40.

The spelling of 1371125721541 in words is "one trillion, three hundred seventy-one billion, one hundred twenty-five million, seven hundred twenty-one thousand, five hundred forty-one".