156226818 has 16 divisors (see below), whose sum is σ = 340858656. Its totient is φ = 47341440.

The previous prime is 156226813. The next prime is 156226831. The reversal of 156226818 is 818622651.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156226813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183471 + ... + 1183602.

It is an arithmetic number, because the mean of its divisors is an integer number (21303666).

Almost surely, 2^156226818 is an apocalyptic number.

156226818 is an abundant number, since it is smaller than the sum of its proper divisors (184631838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156226818 is a wasteful number, since it uses less digits than its factorization.

156226818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367089.

The product of its digits is 46080, while the sum is 39.

The square root of 156226818 is about 12499.0726856035. The cubic root of 156226818 is about 538.5820343345.

The spelling of 156226818 in words is "one hundred fifty-six million, two hundred twenty-six thousand, eight hundred eighteen".