121946547 has 8 divisors (see below), whose sum is σ = 164885760. Its totient is φ = 80152520.

The previous prime is 121946519. The next prime is 121946551. The reversal of 121946547 is 745649121.

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 121946547 - 2⁸ = 121946291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121946567) by changing a digit.

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, 286047 + ... + 286472.

It is an arithmetic number, because the mean of its divisors is an integer number (20610720).

Almost surely, 2^121946547 is an apocalyptic number.

121946547 is a deficient number, since it is larger than the sum of its proper divisors (42939213).

121946547 is an equidigital number, since it uses as much as digits as its factorization.

121946547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572593.

The product of its digits is 60480, while the sum is 39.

The square root of 121946547 is about 11042.9410484707. The cubic root of 121946547 is about 495.8951215014.

The spelling of 121946547 in words is "one hundred twenty-one million, nine hundred forty-six thousand, five hundred forty-seven".