127156851 has 32 divisors (see below), whose sum is σ = 195955200. Its totient is φ = 81396000.

The previous prime is 127156849. The next prime is 127156871. The reversal of 127156851 is 158651721.

It is not a de Polignac number, because 127156851 - 2¹ = 127156849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127156801) 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 31 ways as a sum of consecutive naturals, for example, 196210 + ... + 196856.

It is an arithmetic number, because the mean of its divisors is an integer number (6123600).

Almost surely, 2^127156851 is an apocalyptic number.

127156851 is a deficient number, since it is larger than the sum of its proper divisors (68798349).

127156851 is a wasteful number, since it uses less digits than its factorization.

127156851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 930 counting only the distinct ones).

The product of its digits is 16800, while the sum is 36.

The square root of 127156851 is about 11276.3846599874. The cubic root of 127156851 is about 502.8594176226.

The spelling of 127156851 in words is "one hundred twenty-seven million, one hundred fifty-six thousand, eight hundred fifty-one".