157140229 has 2 divisors, whose sum is σ = 157140230. Its totient is φ = 157140228.

The previous prime is 157140227. The next prime is 157140251. The reversal of 157140229 is 922041751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153809604 + 3330625 = 12402^2 + 1825^2 .

It is an emirp because it is prime and its reverse (922041751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157140229 - 2¹ = 157140227 is a prime.

Together with 157140227, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 157140229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157140227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78570114 + 78570115.

It is an arithmetic number, because the mean of its divisors is an integer number (78570115).

Almost surely, 2^157140229 is an apocalyptic number.

It is an amenable number.

157140229 is a deficient number, since it is larger than the sum of its proper divisors (1).

157140229 is an equidigital number, since it uses as much as digits as its factorization.

157140229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 157140229 is about 12535.5585834856. The cubic root of 157140229 is about 539.6296374462.

The spelling of 157140229 in words is "one hundred fifty-seven million, one hundred forty thousand, two hundred twenty-nine".