4128187131 has 48 divisors (see below), whose sum is σ = 6395118912. Its totient is φ = 2559744000.

The previous prime is 4128187123. The next prime is 4128187153. The reversal of 4128187131 is 1317818214.

It is not a de Polignac number, because 4128187131 - 2³ = 4128187123 is a prime.

It is a super-2 number, since 2×4128187131² = 34083857977108022322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4128187121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3402681 + ... + 3403893.

It is an arithmetic number, because the mean of its divisors is an integer number (133231644).

Almost surely, 2^4128187131 is an apocalyptic number.

4128187131 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4128187131 is a deficient number, since it is larger than the sum of its proper divisors (2266931781).

4128187131 is a wasteful number, since it uses less digits than its factorization.

4128187131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 1681 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 4128187131 is about 64250.9698837302. The cubic root of 4128187131 is about 1604.1801023869.

The spelling of 4128187131 in words is "four billion, one hundred twenty-eight million, one hundred eighty-seven thousand, one hundred thirty-one".