228040153 has 4 divisors (see below), whose sum is σ = 248771088. Its totient is φ = 207309220.

The previous prime is 228040151. The next prime is 228040181. The reversal of 228040153 is 351040822.

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 a cyclic number.

It is not a de Polignac number, because 228040153 - 2¹ = 228040151 is a prime.

It is a super-2 number, since 2×228040153² = 104004622760526818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228040151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10365451 + ... + 10365472.

It is an arithmetic number, because the mean of its divisors is an integer number (62192772).

Almost surely, 2^228040153 is an apocalyptic number.

It is an amenable number.

228040153 is a deficient number, since it is larger than the sum of its proper divisors (20730935).

228040153 is a wasteful number, since it uses less digits than its factorization.

228040153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20730934.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 228040153 is about 15100.9984107012. The cubic root of 228040153 is about 610.9473347924.

Adding to 228040153 its reverse (351040822), we get a palindrome (579080975).

The spelling of 228040153 in words is "two hundred twenty-eight million, forty thousand, one hundred fifty-three".