229688157 has 8 divisors (see below), whose sum is σ = 307416384. Its totient is φ = 152542688.

The previous prime is 229688111. The next prime is 229688159. The reversal of 229688157 is 751886922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229688157 - 2⁷ = 229688029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229688159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144768 + ... + 146345.

It is an arithmetic number, because the mean of its divisors is an integer number (38427048).

Almost surely, 2^229688157 is an apocalyptic number.

It is an amenable number.

229688157 is a deficient number, since it is larger than the sum of its proper divisors (77728227).

229688157 is a wasteful number, since it uses less digits than its factorization.

229688157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291379.

The product of its digits is 483840, while the sum is 48.

The square root of 229688157 is about 15155.4662415909. The cubic root of 229688157 is about 612.4155380967.

It can be divided in two parts, 22968 and 8157, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 229688157 in words is "two hundred twenty-nine million, six hundred eighty-eight thousand, one hundred fifty-seven".