127162643 has 4 divisors (see below), whose sum is σ = 127828608. Its totient is φ = 126496680.

The previous prime is 127162603. The next prime is 127162663. The reversal of 127162643 is 346261721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127162643 - 2¹⁴ = 127146259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127162603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332696 + ... + 333077.

It is an arithmetic number, because the mean of its divisors is an integer number (31957152).

Almost surely, 2^127162643 is an apocalyptic number.

127162643 is a deficient number, since it is larger than the sum of its proper divisors (665965).

127162643 is an equidigital number, since it uses as much as digits as its factorization.

127162643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665964.

The product of its digits is 12096, while the sum is 32.

The square root of 127162643 is about 11276.6414769647. The cubic root of 127162643 is about 502.8670525960.

The spelling of 127162643 in words is "one hundred twenty-seven million, one hundred sixty-two thousand, six hundred forty-three".