121093785 has 40 divisors (see below), whose sum is σ = 222966216. Its totient is φ = 62830080.

The previous prime is 121093769. The next prime is 121093811. The reversal of 121093785 is 587390121.

It can be written as a sum of positive squares in 4 ways, for example, as 24681024 + 96412761 = 4968^2 + 9819^2 .

It is not a de Polignac number, because 121093785 - 2⁴ = 121093769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10945 + ... + 19025.

Almost surely, 2^121093785 is an apocalyptic number.

121093785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121093785 is a deficient number, since it is larger than the sum of its proper divisors (101872431).

121093785 is an equidigital number, since it uses as much as digits as its factorization.

121093785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8135 (or 8126 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 121093785 is about 11004.2621288299. The cubic root of 121093785 is about 494.7364988750.

The spelling of 121093785 in words is "one hundred twenty-one million, ninety-three thousand, seven hundred eighty-five".