2101294551 has 16 divisors (see below), whose sum is σ = 2879875296. Its totient is φ = 1362256896.

The previous prime is 2101294529. The next prime is 2101294579. The reversal of 2101294551 is 1554921012.

It is not a de Polignac number, because 2101294551 - 2¹⁰ = 2101293527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101292551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40510 + ... + 76443.

It is an arithmetic number, because the mean of its divisors is an integer number (179992206).

Almost surely, 2^2101294551 is an apocalyptic number.

2101294551 is a deficient number, since it is larger than the sum of its proper divisors (778580745).

2101294551 is a wasteful number, since it uses less digits than its factorization.

2101294551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117122.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 2101294551 is about 45839.8794828259. The cubic root of 2101294551 is about 1280.8422498301.

The spelling of 2101294551 in words is "two billion, one hundred one million, two hundred ninety-four thousand, five hundred fifty-one".