121590601 has 12 divisors (see below), whose sum is σ = 135270576. Its totient is φ = 109196120.

The previous prime is 121590589. The next prime is 121590607. The reversal of 121590601 is 106095121.

It is not a de Polignac number, because 121590601 - 2⁵ = 121590569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121590607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3990 + ... + 16096.

It is an arithmetic number, because the mean of its divisors is an integer number (11272548).

Almost surely, 2^121590601 is an apocalyptic number.

121590601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121590601 is a deficient number, since it is larger than the sum of its proper divisors (13679975).

121590601 is a wasteful number, since it uses less digits than its factorization.

121590601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212 (or 12201 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 121590601 is about 11026.8128214820. The cubic root of 121590601 is about 495.4121669976.

The spelling of 121590601 in words is "one hundred twenty-one million, five hundred ninety thousand, six hundred one".