121858485 has 32 divisors (see below), whose sum is σ = 232519680. Its totient is φ = 53283648.

The previous prime is 121858483. The next prime is 121858511. The reversal of 121858485 is 584858121.

It is not a de Polignac number, because 121858485 - 2¹ = 121858483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121858483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22815 + ... + 27644.

It is an arithmetic number, because the mean of its divisors is an integer number (7266240).

Almost surely, 2^121858485 is an apocalyptic number.

121858485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121858485 is a deficient number, since it is larger than the sum of its proper divisors (110661195).

121858485 is a wasteful number, since it uses less digits than its factorization.

121858485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50497.

The product of its digits is 102400, while the sum is 42.

The square root of 121858485 is about 11038.9530753600. The cubic root of 121858485 is about 495.7757248388.

The spelling of 121858485 in words is "one hundred twenty-one million, eight hundred fifty-eight thousand, four hundred eighty-five".