127446139 has 2 divisors, whose sum is σ = 127446140. Its totient is φ = 127446138.

The previous prime is 127446133. The next prime is 127446149. The reversal of 127446139 is 931644721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127446139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127446098 and 127446107.

It is not a weakly prime, because it can be changed into another prime (127446133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63723069 + 63723070.

It is an arithmetic number, because the mean of its divisors is an integer number (63723070).

Almost surely, 2^127446139 is an apocalyptic number.

127446139 is a deficient number, since it is larger than the sum of its proper divisors (1).

127446139 is an equidigital number, since it uses as much as digits as its factorization.

127446139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 127446139 is about 11289.2045335356. The cubic root of 127446139 is about 503.2404719799.

The spelling of 127446139 in words is "one hundred twenty-seven million, four hundred forty-six thousand, one hundred thirty-nine".