1167369421 has 4 divisors (see below), whose sum is σ = 1171808352. Its totient is φ = 1162930492.

The previous prime is 1167369397. The next prime is 1167369431. The reversal of 1167369421 is 1249637611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1249637611 = 653 ⋅1913687.

It is a cyclic number.

It is not a de Polignac number, because 1167369421 - 2¹⁷ = 1167238349 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 (1167369431) 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, 2219071 + ... + 2219596.

It is an arithmetic number, because the mean of its divisors is an integer number (292952088).

Almost surely, 2^1167369421 is an apocalyptic number.

It is an amenable number.

1167369421 is a deficient number, since it is larger than the sum of its proper divisors (4438931).

1167369421 is an equidigital number, since it uses as much as digits as its factorization.

1167369421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438930.

The product of its digits is 54432, while the sum is 40.

The square root of 1167369421 is about 34166.7882745803. The cubic root of 1167369421 is about 1052.9379309481.

The spelling of 1167369421 in words is "one billion, one hundred sixty-seven million, three hundred sixty-nine thousand, four hundred twenty-one".