127542165103 has 4 divisors (see below), whose sum is σ = 127548816448. Its totient is φ = 127535513760.

The previous prime is 127542165071. The next prime is 127542165161. The reversal of 127542165103 is 301561245721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301561245721 = 200177 ⋅1506473.

It is a cyclic number.

It is not a de Polignac number, because 127542165103 - 2⁵ = 127542165071 is a prime.

It is a super-2 number, since 2×127542165103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127542145103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3296826 + ... + 3335287.

It is an arithmetic number, because the mean of its divisors is an integer number (31887204112).

Almost surely, 2^127542165103 is an apocalyptic number.

127542165103 is a deficient number, since it is larger than the sum of its proper divisors (6651345).

127542165103 is an equidigital number, since it uses as much as digits as its factorization.

127542165103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6651344.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 127542165103 in words is "one hundred twenty-seven billion, five hundred forty-two million, one hundred sixty-five thousand, one hundred three".