971121361 has 8 divisors (see below), whose sum is σ = 1116054720. Its totient is φ = 827738448.

The previous prime is 971121337. The next prime is 971121377. The reversal of 971121361 is 163121179.

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

It is a cyclic number.

It is not a de Polignac number, because 971121361 - 2⁵ = 971121329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971121301) 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, 386266 + ... + 388771.

It is an arithmetic number, because the mean of its divisors is an integer number (139506840).

Almost surely, 2^971121361 is an apocalyptic number.

It is an amenable number.

971121361 is a deficient number, since it is larger than the sum of its proper divisors (144933359).

971121361 is a wasteful number, since it uses less digits than its factorization.

971121361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775223.

The product of its digits is 2268, while the sum is 31.

The square root of 971121361 is about 31162.8201708382. The cubic root of 971121361 is about 990.2796071092.

The spelling of 971121361 in words is "nine hundred seventy-one million, one hundred twenty-one thousand, three hundred sixty-one".