121697358 has 16 divisors (see below), whose sum is σ = 244258176. Its totient is φ = 40421880.

The previous prime is 121697327. The next prime is 121697377. The reversal of 121697358 is 853796121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34138 + ... + 37533.

It is an arithmetic number, because the mean of its divisors is an integer number (15266136).

Almost surely, 2^121697358 is an apocalyptic number.

121697358 is an abundant number, since it is smaller than the sum of its proper divisors (122560818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121697358 is a wasteful number, since it uses less digits than its factorization.

121697358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71959.

The product of its digits is 90720, while the sum is 42.

The square root of 121697358 is about 11031.6525507287. The cubic root of 121697358 is about 495.5571158259.

The spelling of 121697358 in words is "one hundred twenty-one million, six hundred ninety-seven thousand, three hundred fifty-eight".