11173961 has 8 divisors (see below), whose sum is σ = 11601480. Its totient is φ = 10749312.

The previous prime is 11173873. The next prime is 11173969. The reversal of 11173961 is 16937111.

It can be written as a sum of positive squares in 4 ways, for example, as 4923961 + 6250000 = 2219^2 + 2500^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11173961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11173969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10301 + ... + 11333.

It is an arithmetic number, because the mean of its divisors is an integer number (1450185).

Almost surely, 2^11173961 is an apocalyptic number.

It is an amenable number.

11173961 is a deficient number, since it is larger than the sum of its proper divisors (427519).

11173961 is a wasteful number, since it uses less digits than its factorization.

11173961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

The product of its digits is 1134, while the sum is 29.

The square root of 11173961 is about 3342.7475226227. The cubic root of 11173961 is about 223.5642637431.

The spelling of 11173961 in words is "eleven million, one hundred seventy-three thousand, nine hundred sixty-one".