152227818 has 24 divisors (see below), whose sum is σ = 335236356. Its totient is φ = 49910400.

The previous prime is 152227813. The next prime is 152227871. The reversal of 152227818 is 818722251.

It can be written as a sum of positive squares in 2 ways, for example, as 113998329 + 38229489 = 10677^2 + 6183^2 .

It is a super-2 number, since 2×152227818² = 46346617146082248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152227811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68223 + ... + 70418.

Almost surely, 2^152227818 is an apocalyptic number.

152227818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

152227818 is an abundant number, since it is smaller than the sum of its proper divisors (183008538).

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

152227818 is a wasteful number, since it uses less digits than its factorization.

152227818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138710 (or 138707 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 152227818 is about 12338.0637865104. The cubic root of 152227818 is about 533.9468238089.

The spelling of 152227818 in words is "one hundred fifty-two million, two hundred twenty-seven thousand, eight hundred eighteen".