229968157 has 2 divisors, whose sum is σ = 229968158. Its totient is φ = 229968156.

The previous prime is 229968143. The next prime is 229968217. The reversal of 229968157 is 751869922.

229968157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226622916 + 3345241 = 15054^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 229968157 - 2¹¹ = 229966109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229968157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229968127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114984078 + 114984079.

It is an arithmetic number, because the mean of its divisors is an integer number (114984079).

Almost surely, 2^229968157 is an apocalyptic number.

It is an amenable number.

229968157 is a deficient number, since it is larger than the sum of its proper divisors (1).

229968157 is an equidigital number, since it uses as much as digits as its factorization.

229968157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 229968157 is about 15164.7010191431. The cubic root of 229968157 is about 612.6642908998.

The spelling of 229968157 in words is "two hundred twenty-nine million, nine hundred sixty-eight thousand, one hundred fifty-seven".