1081722238541 has 4 divisors (see below), whose sum is σ = 1236253986912. Its totient is φ = 927190490172.

The previous prime is 1081722238537. The next prime is 1081722238559. The reversal of 1081722238541 is 1458322271801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1081722238541 - 2² = 1081722238537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1081722238492 and 1081722238501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081722238141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77265874175 + ... + 77265874188.

It is an arithmetic number, because the mean of its divisors is an integer number (309063496728).

Almost surely, 2^{1081722238541} is an apocalyptic number.

It is an amenable number.

1081722238541 is a deficient number, since it is larger than the sum of its proper divisors (154531748371).

1081722238541 is an equidigital number, since it uses as much as digits as its factorization.

1081722238541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154531748370.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 1081722238541 in words is "one trillion, eighty-one billion, seven hundred twenty-two million, two hundred thirty-eight thousand, five hundred forty-one".