157229 has 2 divisors, whose sum is σ = 157230. Its totient is φ = 157228.

The previous prime is 157219. The next prime is 157231. The reversal of 157229 is 922751.

157229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104329 + 52900 = 323^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 157229 - 2¹² = 153133 is a prime.

Together with 157231, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157198 and 157207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78614 + 78615.

It is an arithmetic number, because the mean of its divisors is an integer number (78615).

2¹⁵⁷²²⁹ is an apocalyptic number.

It is an amenable number.

157229 is a deficient number, since it is larger than the sum of its proper divisors (1).

157229 is an equidigital number, since it uses as much as digits as its factorization.

157229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 26.

The square root of 157229 is about 396.5211217577. The cubic root of 157229 is about 53.9731233422.

It can be divided in two parts, 157 and 229, that multiplied together give a palindrome (35953).

The spelling of 157229 in words is "one hundred fifty-seven thousand, two hundred twenty-nine".