127145420 has 24 divisors (see below), whose sum is σ = 267596784. Its totient is φ = 50745536.

The previous prime is 127145419. The next prime is 127145423. The reversal of 127145420 is 24541721.

It is a self number, because there is not a number n which added to its sum of digits gives 127145420.

It is not an unprimeable number, because it can be changed into a prime (127145423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2534 + ... + 16146.

It is an arithmetic number, because the mean of its divisors is an integer number (11149866).

Almost surely, 2^127145420 is an apocalyptic number.

127145420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127145420 is an abundant number, since it is smaller than the sum of its proper divisors (140451364).

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

127145420 is a wasteful number, since it uses less digits than its factorization.

127145420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14089 (or 14087 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 127145420 is about 11275.8777928816. The cubic root of 127145420 is about 502.8443486789.

The spelling of 127145420 in words is "one hundred twenty-seven million, one hundred forty-five thousand, four hundred twenty".