122780595 has 32 divisors (see below), whose sum is σ = 228759552. Its totient is φ = 55066752.

The previous prime is 122780569. The next prime is 122780597. The reversal of 122780595 is 595087221.

It is not a de Polignac number, because 122780595 - 2¹⁴ = 122764211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122780597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5467 + ... + 16596.

It is an arithmetic number, because the mean of its divisors is an integer number (7148736).

Almost surely, 2^122780595 is an apocalyptic number.

122780595 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122780595 is a deficient number, since it is larger than the sum of its proper divisors (105978957).

122780595 is a wasteful number, since it uses less digits than its factorization.

122780595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22131.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 122780595 is about 11080.6405500765. The cubic root of 122780595 is about 497.0231046967.

The spelling of 122780595 in words is "one hundred twenty-two million, seven hundred eighty thousand, five hundred ninety-five".