127745770 has 16 divisors (see below), whose sum is σ = 230696928. Its totient is φ = 50930640.

The previous prime is 127745767. The next prime is 127745771. The reversal of 127745770 is 77547721.

It is not an unprimeable number, because it can be changed into a prime (127745771) 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, 17736 + ... + 23875.

It is an arithmetic number, because the mean of its divisors is an integer number (14418558).

Almost surely, 2^127745770 is an apocalyptic number.

127745770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127745770 is a deficient number, since it is larger than the sum of its proper divisors (102951158).

127745770 is a wasteful number, since it uses less digits than its factorization.

127745770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41925.

The product of its (nonzero) digits is 96040, while the sum is 40.

The square root of 127745770 is about 11302.4674297252. The cubic root of 127745770 is about 503.6345428473.

The spelling of 127745770 in words is "one hundred twenty-seven million, seven hundred forty-five thousand, seven hundred seventy".