228131653 has 16 divisors (see below), whose sum is σ = 246343680. Its totient is φ = 210496000.

The previous prime is 228131633. The next prime is 228131669. The reversal of 228131653 is 356131822.

It is a cyclic number.

It is not a de Polignac number, because 228131653 - 2⁵ = 228131621 is a prime.

It is a super-2 number, since 2×228131653² = 104088102201024818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228131623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197628 + ... + 198778.

It is an arithmetic number, because the mean of its divisors is an integer number (15396480).

Almost surely, 2^228131653 is an apocalyptic number.

It is an amenable number.

228131653 is a deficient number, since it is larger than the sum of its proper divisors (18212027).

228131653 is a wasteful number, since it uses less digits than its factorization.

228131653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388.

The product of its digits is 8640, while the sum is 31.

The square root of 228131653 is about 15104.0277078665. The cubic root of 228131653 is about 611.0290370793.

The spelling of 228131653 in words is "two hundred twenty-eight million, one hundred thirty-one thousand, six hundred fifty-three".