1167140823 has 4 divisors (see below), whose sum is σ = 1556187768. Its totient is φ = 778093880.

The previous prime is 1167140783. The next prime is 1167140827. The reversal of 1167140823 is 3280417611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3280417611 = 3 ⋅1093472537.

It is a cyclic number.

It is not a de Polignac number, because 1167140823 - 2¹⁷ = 1167009751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167140827) 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, 194523468 + ... + 194523473.

It is an arithmetic number, because the mean of its divisors is an integer number (389046942).

Almost surely, 2^1167140823 is an apocalyptic number.

1167140823 is a deficient number, since it is larger than the sum of its proper divisors (389046945).

1167140823 is an equidigital number, since it uses as much as digits as its factorization.

1167140823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389046944.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1167140823 is about 34163.4427861128. The cubic root of 1167140823 is about 1052.8691965743.

The spelling of 1167140823 in words is "one billion, one hundred sixty-seven million, one hundred forty thousand, eight hundred twenty-three".