2151126117 has 36 divisors (see below), whose sum is σ = 3618048096. Its totient is φ = 1228001040.

The previous prime is 2151126079. The next prime is 2151126137. The reversal of 2151126117 is 7116211512.

It is not a de Polignac number, because 2151126117 - 2⁷ = 2151125989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151126137) 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 35 ways as a sum of consecutive naturals, for example, 636442 + ... + 639812.

It is an arithmetic number, because the mean of its divisors is an integer number (100501336).

Almost surely, 2^2151126117 is an apocalyptic number.

It is an amenable number.

2151126117 is a deficient number, since it is larger than the sum of its proper divisors (1466921979).

2151126117 is a wasteful number, since it uses less digits than its factorization.

2151126117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838 (or 4828 counting only the distinct ones).

The product of its digits is 840, while the sum is 27.

The square root of 2151126117 is about 46380.2341197196. The cubic root of 2151126117 is about 1290.8881804766. Note that the first 3 decimals are identical.

Adding to 2151126117 its reverse (7116211512), we get a palindrome (9267337629).

The spelling of 2151126117 in words is "two billion, one hundred fifty-one million, one hundred twenty-six thousand, one hundred seventeen".