121498973 has 8 divisors (see below), whose sum is σ = 123075000. Its totient is φ = 119927808.

The previous prime is 121498943. The next prime is 121498981. The reversal of 121498973 is 379894121.

It can be written as a sum of positive squares in 4 ways, for example, as 29300569 + 92198404 = 5413^2 + 9602^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121498973 - 2¹⁴ = 121482589 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 (121498943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96653 + ... + 97901.

It is an arithmetic number, because the mean of its divisors is an integer number (15384375).

Almost surely, 2^121498973 is an apocalyptic number.

It is an amenable number.

121498973 is a deficient number, since it is larger than the sum of its proper divisors (1576027).

121498973 is a wasteful number, since it uses less digits than its factorization.

121498973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its digits is 108864, while the sum is 44.

The square root of 121498973 is about 11022.6572567598. The cubic root of 121498973 is about 495.2876918244.

The spelling of 121498973 in words is "one hundred twenty-one million, four hundred ninety-eight thousand, nine hundred seventy-three".