155316122 has 16 divisors (see below), whose sum is σ = 251537832. Its totient is φ = 71500800.

The previous prime is 155316067. The next prime is 155316149. The reversal of 155316122 is 221613551.

It can be written as a sum of positive squares in 4 ways, for example, as 155276521 + 39601 = 12461^2 + 199^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 155316091 and 155316100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2978 + ... + 17874.

Almost surely, 2^155316122 is an apocalyptic number.

155316122 is a deficient number, since it is larger than the sum of its proper divisors (96221710).

155316122 is a wasteful number, since it uses less digits than its factorization.

155316122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15313.

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

The square root of 155316122 is about 12462.5888963730. The cubic root of 155316122 is about 537.5334720096.

Adding to 155316122 its reverse (221613551), we get a palindrome (376929673).

The spelling of 155316122 in words is "one hundred fifty-five million, three hundred sixteen thousand, one hundred twenty-two".