229727531401 has 3 divisors (see below), whose sum is σ = 229728010701. Its totient is φ = 229727052102.

The previous prime is 229727531387. The next prime is 229727531447. The reversal of 229727531401 is 104135727922.

The square root of 229727531401 is 479299.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 229727531401 - 2⁹ = 229727530889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229727531801) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 239650 + ... + 718948.

It is an arithmetic number, because the mean of its divisors is an integer number (76576003567).

Almost surely, 2^229727531401 is an apocalyptic number.

229727531401 is the 479299-th square number.

229727531401 is the 239650-th centered octagonal number.

It is an amenable number.

229727531401 is a deficient number, since it is larger than the sum of its proper divisors (479300).

229727531401 is an frugal number, since it uses more digits than its factorization.

229727531401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958598 (or 479299 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

It can be divided in two parts, 2297275 and 31401, that added together give a square (2328676 = 1526²).

The spelling of 229727531401 in words is "two hundred twenty-nine billion, seven hundred twenty-seven million, five hundred thirty-one thousand, four hundred one".