121749697 has 8 divisors (see below), whose sum is σ = 123076800. Its totient is φ = 120428880.

The previous prime is 121749673. The next prime is 121749709. The reversal of 121749697 is 796947121.

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 121749697 - 2¹⁵ = 121716929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121749637) 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, 44388 + ... + 47050.

It is an arithmetic number, because the mean of its divisors is an integer number (15384600).

Almost surely, 2^121749697 is an apocalyptic number.

It is an amenable number.

121749697 is a deficient number, since it is larger than the sum of its proper divisors (1327103).

121749697 is a wasteful number, since it uses less digits than its factorization.

121749697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143.

The product of its digits is 190512, while the sum is 46.

The square root of 121749697 is about 11034.0245151078. The cubic root of 121749697 is about 495.6281478979.

The spelling of 121749697 in words is "one hundred twenty-one million, seven hundred forty-nine thousand, six hundred ninety-seven".