123034157 has 2 divisors, whose sum is σ = 123034158. Its totient is φ = 123034156.

The previous prime is 123034141. The next prime is 123034159. The reversal of 123034157 is 751430321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88153321 + 34880836 = 9389^2 + 5906^2 .

It is an emirp because it is prime and its reverse (751430321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123034157 - 2⁴ = 123034141 is a prime.

Together with 123034159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123034159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61517078 + 61517079.

It is an arithmetic number, because the mean of its divisors is an integer number (61517079).

Almost surely, 2^123034157 is an apocalyptic number.

It is an amenable number.

123034157 is a deficient number, since it is larger than the sum of its proper divisors (1).

123034157 is an equidigital number, since it uses as much as digits as its factorization.

123034157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 123034157 is about 11092.0763160014. The cubic root of 123034157 is about 497.3650140920.

Adding to 123034157 its reverse (751430321), we get a palindrome (874464478).

The spelling of 123034157 in words is "one hundred twenty-three million, thirty-four thousand, one hundred fifty-seven".