2154130101 has 24 divisors (see below), whose sum is σ = 3167775000. Its totient is φ = 1410342912.

The previous prime is 2154130091. The next prime is 2154130117. The reversal of 2154130101 is 1010314512.

2154130101 is a `hidden beast` number, since 21 + 541 + 3 + 0 + 101 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 97416900 + 2056713201 = 9870^2 + 45351^2 .

It is not a de Polignac number, because 2154130101 - 2²² = 2149935797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154130151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110325 + ... + 128373.

It is an arithmetic number, because the mean of its divisors is an integer number (131990625).

Almost surely, 2^2154130101 is an apocalyptic number.

It is an amenable number.

2154130101 is a deficient number, since it is larger than the sum of its proper divisors (1013644899).

2154130101 is a wasteful number, since it uses less digits than its factorization.

2154130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18293 (or 18290 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2154130101 is about 46412.6071342690. The cubic root of 2154130101 is about 1291.4887967038.

Adding to 2154130101 its reverse (1010314512), we get a palindrome (3164444613).

The spelling of 2154130101 in words is "two billion, one hundred fifty-four million, one hundred thirty thousand, one hundred one".