1149554143691 has 8 divisors (see below), whose sum is σ = 1157235913344. Its totient is φ = 1141894935360.

The previous prime is 1149554143687. The next prime is 1149554143807. The reversal of 1149554143691 is 1963414559411.

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 1149554143691 - 2² = 1149554143687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149554163691) 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 7 ways as a sum of consecutive naturals, for example, 5538080 + ... + 5741901.

It is an arithmetic number, because the mean of its divisors is an integer number (144654489168).

Almost surely, 2^{1149554143691} is an apocalyptic number.

1149554143691 is a deficient number, since it is larger than the sum of its proper divisors (7681769653).

1149554143691 is a wasteful number, since it uses less digits than its factorization.

1149554143691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11280661.

The product of its digits is 2332800, while the sum is 53.

The spelling of 1149554143691 in words is "one trillion, one hundred forty-nine billion, five hundred fifty-four million, one hundred forty-three thousand, six hundred ninety-one".