229199481531 has 24 divisors (see below), whose sum is σ = 350603673264. Its totient is φ = 143785474560.

The previous prime is 229199481523. The next prime is 229199481551. The reversal of 229199481531 is 135184991922.

It is a happy number.

229199481531 is a `hidden beast` number, since 2 + 2 + 9 + 19 + 94 + 8 + 1 + 531 = 666.

It is not a de Polignac number, because 229199481531 - 2³ = 229199481523 is a prime.

It is a super-2 number, since 2×229199481531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (229199481551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 733116 + ... + 997926.

It is an arithmetic number, because the mean of its divisors is an integer number (14608486386).

Almost surely, 2^229199481531 is an apocalyptic number.

229199481531 is a deficient number, since it is larger than the sum of its proper divisors (121404191733).

229199481531 is a wasteful number, since it uses less digits than its factorization.

229199481531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270491 (or 270488 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The spelling of 229199481531 in words is "two hundred twenty-nine billion, one hundred ninety-nine million, four hundred eighty-one thousand, five hundred thirty-one".