127820063 has 16 divisors (see below), whose sum is σ = 148152576. Its totient is φ = 108017280.

The previous prime is 127820057. The next prime is 127820107. The reversal of 127820063 is 360028721.

It is a happy number.

It is not a de Polignac number, because 127820063 - 2⁶ = 127819999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127820003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223568 + ... + 224138.

It is an arithmetic number, because the mean of its divisors is an integer number (9259536).

Almost surely, 2^127820063 is an apocalyptic number.

127820063 is a deficient number, since it is larger than the sum of its proper divisors (20332513).

127820063 is a wasteful number, since it uses less digits than its factorization.

127820063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 127820063 is about 11305.7535352581. The cubic root of 127820063 is about 503.7321566992.

Adding to 127820063 its reverse (360028721), we get a palindrome (487848784).

The spelling of 127820063 in words is "one hundred twenty-seven million, eight hundred twenty thousand, sixty-three".