135156122 has 4 divisors (see below), whose sum is σ = 202734186. Its totient is φ = 67578060.

The previous prime is 135156107. The next prime is 135156127. The reversal of 135156122 is 221651531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221651531 = 3853 ⋅57527.

It can be written as a sum of positive squares in only one way, i.e., 75881521 + 59274601 = 8711^2 + 7699^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135156091 and 135156100.

It is not an unprimeable number, because it can be changed into a prime (135156127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33789029 + ... + 33789032.

Almost surely, 2^135156122 is an apocalyptic number.

135156122 is a deficient number, since it is larger than the sum of its proper divisors (67578064).

135156122 is an equidigital number, since it uses as much as digits as its factorization.

135156122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67578063.

The product of its digits is 1800, while the sum is 26.

The square root of 135156122 is about 11625.6665185270. Note that the first 3 decimals coincide. The cubic root of 135156122 is about 513.1904595730.

The spelling of 135156122 in words is "one hundred thirty-five million, one hundred fifty-six thousand, one hundred twenty-two".