122493865 has 48 divisors (see below), whose sum is σ = 171161424. Its totient is φ = 83566080.

The previous prime is 122493863. The next prime is 122493887. The reversal of 122493865 is 568394221.

It can be written as a sum of positive squares in 8 ways, for example, as 700569 + 121793296 = 837^2 + 11036^2 .

It is not a de Polignac number, because 122493865 - 2¹ = 122493863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122493863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2311179 + ... + 2311231.

It is an arithmetic number, because the mean of its divisors is an integer number (3565863).

Almost surely, 2^122493865 is an apocalyptic number.

It is an amenable number.

122493865 is a deficient number, since it is larger than the sum of its proper divisors (48667559).

122493865 is a wasteful number, since it uses less digits than its factorization.

122493865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 139 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 122493865 is about 11067.6946560700. The cubic root of 122493865 is about 496.6359031339.

The spelling of 122493865 in words is "one hundred twenty-two million, four hundred ninety-three thousand, eight hundred sixty-five".