1172538967 has 4 divisors (see below), whose sum is σ = 1172949120. Its totient is φ = 1172128816.

The previous prime is 1172538959. The next prime is 1172538973. The reversal of 1172538967 is 7698352711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1172538967 - 2³ = 1172538959 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172538967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172538167) 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, 200758 + ... + 206515.

It is an arithmetic number, because the mean of its divisors is an integer number (293237280).

Almost surely, 2^1172538967 is an apocalyptic number.

1172538967 is a deficient number, since it is larger than the sum of its proper divisors (410153).

1172538967 is an equidigital number, since it uses as much as digits as its factorization.

1172538967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410152.

The product of its digits is 635040, while the sum is 49.

The square root of 1172538967 is about 34242.3563295519. The cubic root of 1172538967 is about 1054.4899092183.

The spelling of 1172538967 in words is "one billion, one hundred seventy-two million, five hundred thirty-eight thousand, nine hundred sixty-seven".