121159497 has 8 divisors (see below), whose sum is σ = 165912256. Its totient is φ = 78589872.

The previous prime is 121159471. The next prime is 121159529. The reversal of 121159497 is 794951121.

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

It is not a de Polignac number, because 121159497 - 2¹⁶ = 121093961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121159427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545653 + ... + 545874.

It is an arithmetic number, because the mean of its divisors is an integer number (20739032).

Almost surely, 2^121159497 is an apocalyptic number.

It is an amenable number.

121159497 is a deficient number, since it is larger than the sum of its proper divisors (44752759).

121159497 is a wasteful number, since it uses less digits than its factorization.

121159497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091567.

The product of its digits is 22680, while the sum is 39.

The square root of 121159497 is about 11007.2474760950. The cubic root of 121159497 is about 494.8259729026.

It can be divided in two parts, 12115 and 9497, that added together give a palindrome (21612).

The spelling of 121159497 in words is "one hundred twenty-one million, one hundred fifty-nine thousand, four hundred ninety-seven".