122285137 has 4 divisors (see below), whose sum is σ = 131691700. Its totient is φ = 112878576.

The previous prime is 122285129. The next prime is 122285143. The reversal of 122285137 is 731582221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731582221 = 11897 ⋅61493.

It can be written as a sum of positive squares in 2 ways, for example, as 24591681 + 97693456 = 4959^2 + 9884^2 .

It is a cyclic number.

It is not a de Polignac number, because 122285137 - 2³ = 122285129 is a prime.

It is a super-3 number, since 3×122285137³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122285099 and 122285108.

It is not an unprimeable number, because it can be changed into a prime (122282137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703262 + ... + 4703287.

It is an arithmetic number, because the mean of its divisors is an integer number (32922925).

Almost surely, 2^122285137 is an apocalyptic number.

It is an amenable number.

122285137 is a deficient number, since it is larger than the sum of its proper divisors (9406563).

122285137 is an equidigital number, since it uses as much as digits as its factorization.

122285137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9406562.

The product of its digits is 6720, while the sum is 31.

The square root of 122285137 is about 11058.2610296556. The cubic root of 122285137 is about 496.3536556540.

It can be divided in two parts, 12228 and 5137, that multiplied together give a triangular number (62815236 = T₁₁₂₀₈).

The spelling of 122285137 in words is "one hundred twenty-two million, two hundred eighty-five thousand, one hundred thirty-seven".