121497 has 4 divisors (see below), whose sum is σ = 162000. Its totient is φ = 80996.

The previous prime is 121493. The next prime is 121501. The reversal of 121497 is 794121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (121493) and next prime (121501).

It is a cyclic number.

It is not a de Polignac number, because 121497 - 2² = 121493 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (121493) 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, 20247 + ... + 20252.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2¹²¹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

121497 is a deficient number, since it is larger than the sum of its proper divisors (40503).

121497 is an equidigital number, since it uses as much as digits as its factorization.

121497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40502.

The product of its digits is 504, while the sum is 24.

The square root of 121497 is about 348.5641978173. The cubic root of 121497 is about 49.5285010847.

The spelling of 121497 in words is "one hundred twenty-one thousand, four hundred ninety-seven".