1197492619081 has 4 divisors (see below), whose sum is σ = 1306355584464. Its totient is φ = 1088629653700.

The previous prime is 1197492619073. The next prime is 1197492619121. The reversal of 1197492619081 is 1809162947911.

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 1197492619081 - 2³ = 1197492619073 is a prime.

It is a super-2 number, since 2×1197492619081² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1197492619021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54431482675 + ... + 54431482696.

It is an arithmetic number, because the mean of its divisors is an integer number (326588896116).

Almost surely, 2^{1197492619081} is an apocalyptic number.

1197492619081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1197492619081 is a deficient number, since it is larger than the sum of its proper divisors (108862965383).

1197492619081 is a wasteful number, since it uses less digits than its factorization.

1197492619081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108862965382.

The product of its (nonzero) digits is 1959552, while the sum is 58.

The spelling of 1197492619081 in words is "one trillion, one hundred ninety-seven billion, four hundred ninety-two million, six hundred nineteen thousand, eighty-one".