121061807 has 8 divisors (see below), whose sum is σ = 124764192. Its totient is φ = 117395200.

The previous prime is 121061803. The next prime is 121061821. The reversal of 121061807 is 708160121.

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 121061807 - 2² = 121061803 is a prime.

It is a super-2 number, since 2×121061807² = 29311922228210498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121061803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994 + ... + 15687.

It is an arithmetic number, because the mean of its divisors is an integer number (15595524).

Almost surely, 2^121061807 is an apocalyptic number.

121061807 is a deficient number, since it is larger than the sum of its proper divisors (3702385).

121061807 is a wasteful number, since it uses less digits than its factorization.

121061807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17889.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 121061807 is about 11002.8090504198. The cubic root of 121061807 is about 494.6929456445.

The spelling of 121061807 in words is "one hundred twenty-one million, sixty-one thousand, eight hundred seven".