127145827 has 2 divisors, whose sum is σ = 127145828. Its totient is φ = 127145826.

The previous prime is 127145813. The next prime is 127145861. The reversal of 127145827 is 728541721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127145827 is a prime.

It is a super-2 number, since 2×127145827² = 32332122647027858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127145897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63572913 + 63572914.

It is an arithmetic number, because the mean of its divisors is an integer number (63572914).

Almost surely, 2^127145827 is an apocalyptic number.

127145827 is a deficient number, since it is larger than the sum of its proper divisors (1).

127145827 is an equidigital number, since it uses as much as digits as its factorization.

127145827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31360, while the sum is 37.

The square root of 127145827 is about 11275.8958402426. The cubic root of 127145827 is about 502.8448852232.

The spelling of 127145827 in words is "one hundred twenty-seven million, one hundred forty-five thousand, eight hundred twenty-seven".