122540031 has 6 divisors (see below), whose sum is σ = 177002280. Its totient is φ = 81693348.

The previous prime is 122540017. The next prime is 122540053. The reversal of 122540031 is 130045221.

122540031 is a `hidden beast` number, since 122 + 540 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 122540031 - 2¹¹ = 122537983 is a prime.

It is a super-2 number, since 2×122540031² = 30032118394961922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122539986 and 122540013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122540071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6807771 + ... + 6807788.

It is an arithmetic number, because the mean of its divisors is an integer number (29500380).

Almost surely, 2^122540031 is an apocalyptic number.

122540031 is a deficient number, since it is larger than the sum of its proper divisors (54462249).

122540031 is a wasteful number, since it uses less digits than its factorization.

122540031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13615565 (or 13615562 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 122540031 is about 11069.7800791163. The cubic root of 122540031 is about 496.6982867026.

Adding to 122540031 its reverse (130045221), we get a palindrome (252585252).

The spelling of 122540031 in words is "one hundred twenty-two million, five hundred forty thousand, thirty-one".