229620961 has 4 divisors (see below), whose sum is σ = 230709424. Its totient is φ = 228532500.

The previous prime is 229620949. The next prime is 229620967. The reversal of 229620961 is 169026922.

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 229620961 - 2⁹ = 229620449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229620961.

It is not an unprimeable number, because it can be changed into a prime (229620967) 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, 543915 + ... + 544336.

It is an arithmetic number, because the mean of its divisors is an integer number (57677356).

Almost surely, 2^229620961 is an apocalyptic number.

It is an amenable number.

229620961 is a deficient number, since it is larger than the sum of its proper divisors (1088463).

229620961 is a wasteful number, since it uses less digits than its factorization.

229620961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088462.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 229620961 is about 15153.2491895303. The cubic root of 229620961 is about 612.3558109014.

The spelling of 229620961 in words is "two hundred twenty-nine million, six hundred twenty thousand, nine hundred sixty-one".