122148865 has 16 divisors (see below), whose sum is σ = 148191120. Its totient is φ = 96651520.

The previous prime is 122148863. The next prime is 122148913. The reversal of 122148865 is 568841221.

It can be written as a sum of positive squares in 8 ways, for example, as 1324801 + 120824064 = 1151^2 + 10992^2 .

It is not a de Polignac number, because 122148865 - 2¹ = 122148863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122148863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264735 + ... + 265195.

It is an arithmetic number, because the mean of its divisors is an integer number (9261945).

Almost surely, 2^122148865 is an apocalyptic number.

It is an amenable number.

122148865 is a deficient number, since it is larger than the sum of its proper divisors (26042255).

122148865 is a wasteful number, since it uses less digits than its factorization.

122148865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932.

The product of its digits is 30720, while the sum is 37.

The square root of 122148865 is about 11052.0977646780. The cubic root of 122148865 is about 496.1692117448.

It can be divided in two parts, 1221 and 48865, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 122148865 in words is "one hundred twenty-two million, one hundred forty-eight thousand, eight hundred sixty-five".