127142747 has 2 divisors, whose sum is σ = 127142748. Its totient is φ = 127142746.

The previous prime is 127142671. The next prime is 127142761. The reversal of 127142747 is 747241721.

It is a strong prime.

It is an emirp because it is prime and its reverse (747241721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127142747 - 2¹² = 127138651 is a prime.

It is a super-2 number, since 2×127142747² = 32330556229412018, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127142777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63571373 + 63571374.

It is an arithmetic number, because the mean of its divisors is an integer number (63571374).

Almost surely, 2^127142747 is an apocalyptic number.

127142747 is a deficient number, since it is larger than the sum of its proper divisors (1).

127142747 is an equidigital number, since it uses as much as digits as its factorization.

127142747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21952, while the sum is 35.

The square root of 127142747 is about 11275.7592649010. The cubic root of 127142747 is about 502.8408248599.

The spelling of 127142747 in words is "one hundred twenty-seven million, one hundred forty-two thousand, seven hundred forty-seven".