121947485 has 16 divisors (see below), whose sum is σ = 159952320. Its totient is φ = 88515840.

The previous prime is 121947473. The next prime is 121947487. The reversal of 121947485 is 584749121.

It is not a de Polignac number, because 121947485 - 2²⁰ = 120898909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121947487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30746 + ... + 34484.

It is an arithmetic number, because the mean of its divisors is an integer number (9997020).

Almost surely, 2^121947485 is an apocalyptic number.

It is an amenable number.

121947485 is a deficient number, since it is larger than the sum of its proper divisors (38004835).

121947485 is a wasteful number, since it uses less digits than its factorization.

121947485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348.

The product of its digits is 80640, while the sum is 41.

The square root of 121947485 is about 11042.9835189590. The cubic root of 121947485 is about 495.8963929559.

The spelling of 121947485 in words is "one hundred twenty-one million, nine hundred forty-seven thousand, four hundred eighty-five".