1135145579 has 4 divisors (see below), whose sum is σ = 1174288560. Its totient is φ = 1096002600.

The previous prime is 1135145563. The next prime is 1135145591. The reversal of 1135145579 is 9755415311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9755415311 = 223 ⋅43746257.

It is a cyclic number.

It is not a de Polignac number, because 1135145579 - 2⁴ = 1135145563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135145509) 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, 19571447 + ... + 19571504.

It is an arithmetic number, because the mean of its divisors is an integer number (293572140).

Almost surely, 2^1135145579 is an apocalyptic number.

1135145579 is a deficient number, since it is larger than the sum of its proper divisors (39142981).

1135145579 is an equidigital number, since it uses as much as digits as its factorization.

1135145579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39142980.

The product of its digits is 94500, while the sum is 41.

The square root of 1135145579 is about 33691.9215688271. The cubic root of 1135145579 is about 1043.1590272377.

The spelling of 1135145579 in words is "one billion, one hundred thirty-five million, one hundred forty-five thousand, five hundred seventy-nine".