127770131 has 2 divisors, whose sum is σ = 127770132. Its totient is φ = 127770130.

The previous prime is 127770107. The next prime is 127770133. The reversal of 127770131 is 131077721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127770131 - 2⁶ = 127770067 is a prime.

It is a super-2 number, since 2×127770131² = 32650412751514322, which contains 22 as substring.

Together with 127770133, 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 = 127770094 and 127770103.

It is not a weakly prime, because it can be changed into another prime (127770133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63885065 + 63885066.

It is an arithmetic number, because the mean of its divisors is an integer number (63885066).

Almost surely, 2^127770131 is an apocalyptic number.

127770131 is a deficient number, since it is larger than the sum of its proper divisors (1).

127770131 is an equidigital number, since it uses as much as digits as its factorization.

127770131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2058, while the sum is 29.

The square root of 127770131 is about 11303.5450633861. The cubic root of 127770131 is about 503.6665550261. Note that the first 3 decimals are identical.

The spelling of 127770131 in words is "one hundred twenty-seven million, seven hundred seventy thousand, one hundred thirty-one".