121236497 has 4 divisors (see below), whose sum is σ = 121937460. Its totient is φ = 120535536.

The previous prime is 121236491. The next prime is 121236527. The reversal of 121236497 is 794632121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794632121 = 19163 ⋅41467.

It can be written as a sum of positive squares in 2 ways, for example, as 109014481 + 12222016 = 10441^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 121236497 - 2¹⁰ = 121235473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121236491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350222 + ... + 350567.

It is an arithmetic number, because the mean of its divisors is an integer number (30484365).

Almost surely, 2^121236497 is an apocalyptic number.

It is an amenable number.

121236497 is a deficient number, since it is larger than the sum of its proper divisors (700963).

121236497 is an equidigital number, since it uses as much as digits as its factorization.

121236497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700962.

The product of its digits is 18144, while the sum is 35.

The square root of 121236497 is about 11010.7446160557. The cubic root of 121236497 is about 494.9307756136.

The spelling of 121236497 in words is "one hundred twenty-one million, two hundred thirty-six thousand, four hundred ninety-seven".