127145770 has 32 divisors (see below), whose sum is σ = 231845328. Its totient is φ = 50201088.

The previous prime is 127145761. The next prime is 127145813. The reversal of 127145770 is 77541721.

It can be written as a sum of positive squares in 8 ways, for example, as 52548001 + 74597769 = 7249^2 + 8637^2 .

It is a super-3 number, since 3×127145770³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 458872 + ... + 459148.

Almost surely, 2^127145770 is an apocalyptic number.

127145770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127145770 is a deficient number, since it is larger than the sum of its proper divisors (104699558).

127145770 is a wasteful number, since it uses less digits than its factorization.

127145770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 127145770 is about 11275.8933127269. The cubic root of 127145770 is about 502.8448100807.

The spelling of 127145770 in words is "one hundred twenty-seven million, one hundred forty-five thousand, seven hundred seventy".