1145171128979 has 8 divisors (see below), whose sum is σ = 1212544728000. Its totient is φ = 1077798706816.

The previous prime is 1145171128963. The next prime is 1145171129107. The reversal of 1145171128979 is 9798211715411.

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 1145171128979 - 2⁴ = 1145171128963 is a prime.

It is a super-2 number, since 2×1145171128979² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145171128279) 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, 2429897 + ... + 2862645.

It is an arithmetic number, because the mean of its divisors is an integer number (151568091000).

Almost surely, 2^{1145171128979} is an apocalyptic number.

1145171128979 is a deficient number, since it is larger than the sum of its proper divisors (67373599021).

1145171128979 is a wasteful number, since it uses less digits than its factorization.

1145171128979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588429.

The product of its digits is 1270080, while the sum is 56.

The spelling of 1145171128979 in words is "one trillion, one hundred forty-five billion, one hundred seventy-one million, one hundred twenty-eight thousand, nine hundred seventy-nine".