127105157 has 2 divisors, whose sum is σ = 127105158. Its totient is φ = 127105156.

The previous prime is 127105109. The next prime is 127105217. The reversal of 127105157 is 751501721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108451396 + 18653761 = 10414^2 + 4319^2 .

It is a cyclic number.

It is not a de Polignac number, because 127105157 - 2¹⁶ = 127039621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127105357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63552578 + 63552579.

It is an arithmetic number, because the mean of its divisors is an integer number (63552579).

Almost surely, 2^127105157 is an apocalyptic number.

It is an amenable number.

127105157 is a deficient number, since it is larger than the sum of its proper divisors (1).

127105157 is an equidigital number, since it uses as much as digits as its factorization.

127105157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450, while the sum is 29.

The square root of 127105157 is about 11274.0922916215. The cubic root of 127105157 is about 502.7912646867.

Adding to 127105157 its reverse (751501721), we get a palindrome (878606878).

The spelling of 127105157 in words is "one hundred twenty-seven million, one hundred five thousand, one hundred fifty-seven".