127717138 has 16 divisors (see below), whose sum is σ = 197366400. Its totient is φ = 61948656.

The previous prime is 127717127. The next prime is 127717157. The reversal of 127717138 is 831717721.

It is a super-2 number, since 2×127717138² = 32623334677822088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127717097 and 127717106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7831 + ... + 17797.

It is an arithmetic number, because the mean of its divisors is an integer number (12335400).

Almost surely, 2^127717138 is an apocalyptic number.

127717138 is a deficient number, since it is larger than the sum of its proper divisors (69649262).

127717138 is a wasteful number, since it uses less digits than its factorization.

127717138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161.

The product of its digits is 16464, while the sum is 37.

The square root of 127717138 is about 11301.2007326655. The cubic root of 127717138 is about 503.5969130516.

The spelling of 127717138 in words is "one hundred twenty-seven million, seven hundred seventeen thousand, one hundred thirty-eight".