121662486 has 80 divisors (see below), whose sum is σ = 302132160. Its totient is φ = 36281520.

The previous prime is 121662407. The next prime is 121662503. The reversal of 121662486 is 684266121.

121662486 is a `hidden beast` number, since 1 + 21 + 6 + 624 + 8 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 121662486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 118885 + ... + 119903.

It is an arithmetic number, because the mean of its divisors is an integer number (3776652).

Almost surely, 2^121662486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121662486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151066080).

121662486 is an abundant number, since it is smaller than the sum of its proper divisors (180469674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121662486 is a wasteful number, since it uses less digits than its factorization.

121662486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1102 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 121662486 is about 11030.0718945980. The cubic root of 121662486 is about 495.5097778532.

The spelling of 121662486 in words is "one hundred twenty-one million, six hundred sixty-two thousand, four hundred eighty-six".