122136537 has 4 divisors (see below), whose sum is σ = 162848720. Its totient is φ = 81424356.

The previous prime is 122136529. The next prime is 122136557. The reversal of 122136537 is 735631221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122136537 - 2³ = 122136529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122136557) 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 3 ways as a sum of consecutive naturals, for example, 20356087 + ... + 20356092.

It is an arithmetic number, because the mean of its divisors is an integer number (40712180).

Almost surely, 2^122136537 is an apocalyptic number.

It is an amenable number.

122136537 is a deficient number, since it is larger than the sum of its proper divisors (40712183).

122136537 is an equidigital number, since it uses as much as digits as its factorization.

122136537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40712182.

The product of its digits is 7560, while the sum is 30.

The square root of 122136537 is about 11051.5400284304. The cubic root of 122136537 is about 496.1525190536.

Adding to 122136537 its reverse (735631221), we get a palindrome (857767758).

The spelling of 122136537 in words is "one hundred twenty-two million, one hundred thirty-six thousand, five hundred thirty-seven".