1177126961 has 4 divisors (see below), whose sum is σ = 1178140272. Its totient is φ = 1176113652.

The previous prime is 1177126927. The next prime is 1177126967. The reversal of 1177126961 is 1696217711.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1177126961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1177126967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504911 + ... + 507236.

It is an arithmetic number, because the mean of its divisors is an integer number (294535068).

Almost surely, 2^1177126961 is an apocalyptic number.

It is an amenable number.

1177126961 is a deficient number, since it is larger than the sum of its proper divisors (1013311).

1177126961 is a wasteful number, since it uses less digits than its factorization.

1177126961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013310.

The product of its digits is 31752, while the sum is 41.

The square root of 1177126961 is about 34309.2838893498. The cubic root of 1177126961 is about 1055.8634803165.

The spelling of 1177126961 in words is "one billion, one hundred seventy-seven million, one hundred twenty-six thousand, nine hundred sixty-one".