229786640133 has 4 divisors (see below), whose sum is σ = 306382186848. Its totient is φ = 153191093420.

The previous prime is 229786640131. The next prime is 229786640143. The reversal of 229786640133 is 331046687922.

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 229786640133 - 2¹ = 229786640131 is a prime.

It is a super-2 number, since 2×229786640133² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229786640131) 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, 38297773353 + ... + 38297773358.

It is an arithmetic number, because the mean of its divisors is an integer number (76595546712).

Almost surely, 2^229786640133 is an apocalyptic number.

It is an amenable number.

229786640133 is a deficient number, since it is larger than the sum of its proper divisors (76595546715).

229786640133 is an equidigital number, since it uses as much as digits as its factorization.

229786640133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76595546714.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 229786640133 in words is "two hundred twenty-nine billion, seven hundred eighty-six million, six hundred forty thousand, one hundred thirty-three".