121195247 has 8 divisors (see below), whose sum is σ = 123002880. Its totient is φ = 119400480.

The previous prime is 121195241. The next prime is 121195271. The reversal of 121195247 is 742591121.

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 121195247 - 2⁴ = 121195231 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 (121195241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16658 + ... + 22800.

It is an arithmetic number, because the mean of its divisors is an integer number (15375360).

Almost surely, 2^121195247 is an apocalyptic number.

121195247 is a deficient number, since it is larger than the sum of its proper divisors (1807633).

121195247 is a wasteful number, since it uses less digits than its factorization.

121195247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433.

The product of its digits is 5040, while the sum is 32.

The square root of 121195247 is about 11008.8712863763. The cubic root of 121195247 is about 494.8746368246.

The spelling of 121195247 in words is "one hundred twenty-one million, one hundred ninety-five thousand, two hundred forty-seven".