121497597 has 16 divisors (see below), whose sum is σ = 193842880. Its totient is φ = 74767536.

The previous prime is 121497581. The next prime is 121497601. The reversal of 121497597 is 795794121.

121497597 is a `hidden beast` number, since 12 + 1 + 49 + 7 + 597 = 666.

It is not a de Polignac number, because 121497597 - 2⁴ = 121497581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121497527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172723 + ... + 173424.

It is an arithmetic number, because the mean of its divisors is an integer number (12115180).

Almost surely, 2^121497597 is an apocalyptic number.

It is an amenable number.

121497597 is a deficient number, since it is larger than the sum of its proper divisors (72345283).

121497597 is a wasteful number, since it uses less digits than its factorization.

121497597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346169 (or 346163 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 121497597 is about 11022.5948396918. The cubic root of 121497597 is about 495.2858220735.

The spelling of 121497597 in words is "one hundred twenty-one million, four hundred ninety-seven thousand, five hundred ninety-seven".