1172532679 has 4 divisors (see below), whose sum is σ = 1172601360. Its totient is φ = 1172464000.

The previous prime is 1172532659. The next prime is 1172532689. The reversal of 1172532679 is 9762352711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9762352711 = 6983 ⋅1398017.

It is a cyclic number.

It is not a de Polignac number, because 1172532679 - 2¹¹ = 1172530631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172532659) 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, 13287 + ... + 50215.

It is an arithmetic number, because the mean of its divisors is an integer number (293150340).

Almost surely, 2^1172532679 is an apocalyptic number.

1172532679 is a deficient number, since it is larger than the sum of its proper divisors (68681).

1172532679 is an equidigital number, since it uses as much as digits as its factorization.

1172532679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68680.

The product of its digits is 158760, while the sum is 43.

The square root of 1172532679 is about 34242.2645133175. The cubic root of 1172532679 is about 1054.4880242363.

The spelling of 1172532679 in words is "one billion, one hundred seventy-two million, five hundred thirty-two thousand, six hundred seventy-nine".