127906357 has 2 divisors, whose sum is σ = 127906358. Its totient is φ = 127906356.

The previous prime is 127906241. The next prime is 127906369. The reversal of 127906357 is 753609721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101425041 + 26481316 = 10071^2 + 5146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127906357 is a prime.

It is a super-2 number, since 2×127906357² = 32720072322022898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127901357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63953178 + 63953179.

It is an arithmetic number, because the mean of its divisors is an integer number (63953179).

Almost surely, 2^127906357 is an apocalyptic number.

It is an amenable number.

127906357 is a deficient number, since it is larger than the sum of its proper divisors (1).

127906357 is an equidigital number, since it uses as much as digits as its factorization.

127906357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 127906357 is about 11309.5692667758. The cubic root of 127906357 is about 503.8454912391.

The spelling of 127906357 in words is "one hundred twenty-seven million, nine hundred six thousand, three hundred fifty-seven".