127446138 has 24 divisors (see below), whose sum is σ = 277044768. Its totient is φ = 42341832.

The previous prime is 127446133. The next prime is 127446139. The reversal of 127446138 is 831644721.

It is a super-2 number, since 2×127446138² = 32485036182230088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127446133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6006 + ... + 17057.

It is an arithmetic number, because the mean of its divisors is an integer number (11543532).

Almost surely, 2^127446138 is an apocalyptic number.

127446138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

127446138 is an abundant number, since it is smaller than the sum of its proper divisors (149598630).

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

127446138 is a wasteful number, since it uses less digits than its factorization.

127446138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23378 (or 23375 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 127446138 is about 11289.2044892455. The cubic root of 127446138 is about 503.2404706637.

The spelling of 127446138 in words is "one hundred twenty-seven million, four hundred forty-six thousand, one hundred thirty-eight".