127477945 has 8 divisors (see below), whose sum is σ = 174826944. Its totient is φ = 87413424.

The previous prime is 127477927. The next prime is 127477949. The reversal of 127477945 is 549774721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127477945 - 2⁹ = 127477433 is a prime.

It is a super-2 number, since 2×127477945² = 32501252922846050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127477895 and 127477904.

It is not an unprimeable number, because it can be changed into a prime (127477949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1821079 + ... + 1821148.

It is an arithmetic number, because the mean of its divisors is an integer number (21853368).

Almost surely, 2^127477945 is an apocalyptic number.

It is an amenable number.

127477945 is a deficient number, since it is larger than the sum of its proper divisors (47348999).

127477945 is an equidigital number, since it uses as much as digits as its factorization.

127477945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642239.

The product of its digits is 493920, while the sum is 46.

The square root of 127477945 is about 11290.6131365839. The cubic root of 127477945 is about 503.2823321080.

The spelling of 127477945 in words is "one hundred twenty-seven million, four hundred seventy-seven thousand, nine hundred forty-five".