121946807 has 4 divisors (see below), whose sum is σ = 128365080. Its totient is φ = 115528536.

The previous prime is 121946801. The next prime is 121946809. The reversal of 121946807 is 708649121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121946807 - 2⁴ = 121946791 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 (121946801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3209108 + ... + 3209145.

It is an arithmetic number, because the mean of its divisors is an integer number (32091270).

Almost surely, 2^121946807 is an apocalyptic number.

121946807 is a deficient number, since it is larger than the sum of its proper divisors (6418273).

121946807 is an equidigital number, since it uses as much as digits as its factorization.

121946807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418272.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 121946807 is about 11042.9528206907. The cubic root of 121946807 is about 495.8954739308.

The spelling of 121946807 in words is "one hundred twenty-one million, nine hundred forty-six thousand, eight hundred seven".