121607001 has 40 divisors (see below), whose sum is σ = 196542720. Its totient is φ = 74639232.

The previous prime is 121606999. The next prime is 121607009. The reversal of 121607001 is 100706121.

It is not a de Polignac number, because 121607001 - 2¹ = 121606999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121607009) 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 39 ways as a sum of consecutive naturals, for example, 63780 + ... + 65658.

It is an arithmetic number, because the mean of its divisors is an integer number (4913568).

Almost surely, 2^121607001 is an apocalyptic number.

It is an amenable number.

121607001 is a deficient number, since it is larger than the sum of its proper divisors (74935719).

121607001 is a wasteful number, since it uses less digits than its factorization.

121607001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 121607001 is about 11027.5564383049. The cubic root of 121607001 is about 495.4344395368.

The spelling of 121607001 in words is "one hundred twenty-one million, six hundred seven thousand, one".