122783085 has 48 divisors (see below), whose sum is σ = 224550144. Its totient is φ = 61940736.

The previous prime is 122783051. The next prime is 122783113. The reversal of 122783085 is 580387221.

It is not a de Polignac number, because 122783085 - 2¹¹ = 122781037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99784 + ... + 101006.

It is an arithmetic number, because the mean of its divisors is an integer number (4678128).

Almost surely, 2^122783085 is an apocalyptic number.

122783085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122783085 is a deficient number, since it is larger than the sum of its proper divisors (101767059).

122783085 is a wasteful number, since it uses less digits than its factorization.

122783085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 122783085 is about 11080.7529076322. The cubic root of 122783085 is about 497.0264645630.

The spelling of 122783085 in words is "one hundred twenty-two million, seven hundred eighty-three thousand, eighty-five".