228136783 has 16 divisors (see below), whose sum is σ = 268395520. Its totient is φ = 189819936.

The previous prime is 228136759. The next prime is 228136789. The reversal of 228136783 is 387631822.

It is a cyclic number.

It is not a de Polignac number, because 228136783 - 2¹⁷ = 228005711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228136789) 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, 159610 + ... + 161032.

It is an arithmetic number, because the mean of its divisors is an integer number (16774720).

Almost surely, 2^228136783 is an apocalyptic number.

228136783 is a deficient number, since it is larger than the sum of its proper divisors (40258737).

228136783 is a wasteful number, since it uses less digits than its factorization.

228136783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086.

The product of its digits is 96768, while the sum is 40.

The square root of 228136783 is about 15104.1975291639. The cubic root of 228136783 is about 611.0336171181.

The spelling of 228136783 in words is "two hundred twenty-eight million, one hundred thirty-six thousand, seven hundred eighty-three".