121485787 has 8 divisors (see below), whose sum is σ = 122777600. Its totient is φ = 120199464.

The previous prime is 121485773. The next prime is 121485803. The reversal of 121485787 is 787584121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121485787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121485737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54664 + ... + 56842.

It is an arithmetic number, because the mean of its divisors is an integer number (15347200).

Almost surely, 2^121485787 is an apocalyptic number.

121485787 is a deficient number, since it is larger than the sum of its proper divisors (1291813).

121485787 is a wasteful number, since it uses less digits than its factorization.

121485787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its digits is 125440, while the sum is 43.

The square root of 121485787 is about 11022.0591088961. The cubic root of 121485787 is about 495.2697737037.

The spelling of 121485787 in words is "one hundred twenty-one million, four hundred eighty-five thousand, seven hundred eighty-seven".