969121001 has 4 divisors (see below), whose sum is σ = 971490900. Its totient is φ = 966751104.

The previous prime is 969120967. The next prime is 969121003. The reversal of 969121001 is 100121969.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 646379776 + 322741225 = 25424^2 + 17965^2 .

It is a cyclic number.

It is not a de Polignac number, because 969121001 - 2⁶ = 969120937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184336 + ... + 1185153.

It is an arithmetic number, because the mean of its divisors is an integer number (242872725).

Almost surely, 2^969121001 is an apocalyptic number.

It is an amenable number.

969121001 is a deficient number, since it is larger than the sum of its proper divisors (2369899).

969121001 is a wasteful number, since it uses less digits than its factorization.

969121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369898.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 969121001 is about 31130.7083279517. The cubic root of 969121001 is about 989.5991987071.

The spelling of 969121001 in words is "nine hundred sixty-nine million, one hundred twenty-one thousand, one".