121814847 has 40 divisors (see below), whose sum is σ = 226883712. Its totient is φ = 63277200.

The previous prime is 121814839. The next prime is 121814851. The reversal of 121814847 is 748418121.

It is not a de Polignac number, because 121814847 - 2³ = 121814839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121814807) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3529 + ... + 16002.

Almost surely, 2^121814847 is an apocalyptic number.

121814847 is a deficient number, since it is larger than the sum of its proper divisors (105068865).

121814847 is a wasteful number, since it uses less digits than its factorization.

121814847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19561 (or 19552 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 121814847 is about 11036.9763522443. The cubic root of 121814847 is about 495.7165380313.

The spelling of 121814847 in words is "one hundred twenty-one million, eight hundred fourteen thousand, eight hundred forty-seven".