1154243871069 has 4 divisors (see below), whose sum is σ = 1538991828096. Its totient is φ = 769495914044.

The previous prime is 1154243871043. The next prime is 1154243871073. The reversal of 1154243871069 is 9601783424511.

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 1154243871069 - 2⁹ = 1154243870557 is a prime.

It is a super-2 number, since 2×1154243871069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154243871269) 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, 192373978509 + ... + 192373978514.

It is an arithmetic number, because the mean of its divisors is an integer number (384747957024).

It is a 1-persistent number, because it is pandigital, but 2⋅1154243871069 = 2308487742138 is not.

Almost surely, 2^{1154243871069} is an apocalyptic number.

It is an amenable number.

1154243871069 is a deficient number, since it is larger than the sum of its proper divisors (384747957027).

1154243871069 is an equidigital number, since it uses as much as digits as its factorization.

1154243871069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384747957026.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 1154243871069 in words is "one trillion, one hundred fifty-four billion, two hundred forty-three million, eight hundred seventy-one thousand, sixty-nine".