2151271107 has 24 divisors (see below), whose sum is σ = 3221579088. Its totient is φ = 1382323200.

The previous prime is 2151271097. The next prime is 2151271147. The reversal of 2151271107 is 7011721512.

It is not a de Polignac number, because 2151271107 - 2⁸ = 2151270851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151271147) 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 23 ways as a sum of consecutive naturals, for example, 4494 + ... + 65747.

It is an arithmetic number, because the mean of its divisors is an integer number (134232462).

Almost surely, 2^2151271107 is an apocalyptic number.

2151271107 is a deficient number, since it is larger than the sum of its proper divisors (1070307981).

2151271107 is a wasteful number, since it uses less digits than its factorization.

2151271107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70371 (or 70368 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 27.

The square root of 2151271107 is about 46381.7971514688. The cubic root of 2151271107 is about 1290.9171825996.

Adding to 2151271107 its reverse (7011721512), we get a palindrome (9162992619).

The spelling of 2151271107 in words is "two billion, one hundred fifty-one million, two hundred seventy-one thousand, one hundred seven".