228983531 has 8 divisors (see below), whose sum is σ = 264142080. Its totient is φ = 194436648.

The previous prime is 228983519. The next prime is 228983533. The reversal of 228983531 is 135389822.

228983531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228983531 - 2⁶ = 228983467 is a prime.

It is a super-2 number, since 2×228983531² = 104866914938455922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228983533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152111 + ... + 153608.

It is an arithmetic number, because the mean of its divisors is an integer number (33017760).

Almost surely, 2^228983531 is an apocalyptic number.

228983531 is a deficient number, since it is larger than the sum of its proper divisors (35158549).

228983531 is a wasteful number, since it uses less digits than its factorization.

228983531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305833.

The product of its digits is 103680, while the sum is 41.

The square root of 228983531 is about 15132.2017895612. The cubic root of 228983531 is about 611.7886505528.

The spelling of 228983531 in words is "two hundred twenty-eight million, nine hundred eighty-three thousand, five hundred thirty-one".