127620018 has 12 divisors (see below), whose sum is σ = 276510078. Its totient is φ = 42540000.

The previous prime is 127620011. The next prime is 127620061. The reversal of 127620018 is 810026721.

127620018 is a `hidden beast` number, since 1 + 27 + 620 + 0 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100340289 + 27279729 = 10017^2 + 5223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 127619973 and 127620000.

It is not an unprimeable number, because it can be changed into a prime (127620011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3544983 + ... + 3545018.

Almost surely, 2^127620018 is an apocalyptic number.

127620018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

127620018 is an abundant number, since it is smaller than the sum of its proper divisors (148890060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127620018 is a wasteful number, since it uses less digits than its factorization.

127620018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090009 (or 7090006 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 127620018 is about 11296.9030269362. The cubic root of 127620018 is about 503.4692305401.

Adding to 127620018 its reverse (810026721), we get a palindrome (937646739).

The spelling of 127620018 in words is "one hundred twenty-seven million, six hundred twenty thousand, eighteen".