2154134700 has 108 divisors (see below), whose sum is σ = 6815423160. Its totient is φ = 569041920.

The previous prime is 2154134699. The next prime is 2154134701. The reversal of 2154134700 is 74314512.

2154134700 is a `hidden beast` number, since 21 + 541 + 34 + 70 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2154134699) and next prime (2154134701).

It is not an unprimeable number, because it can be changed into a prime (2154134701) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85116 + ... + 107484.

It is an arithmetic number, because the mean of its divisors is an integer number (63105770).

Almost surely, 2^2154134700 is an apocalyptic number.

2154134700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154134700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3407711580).

2154134700 is an abundant number, since it is smaller than the sum of its proper divisors (4661288460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154134700 is a wasteful number, since it uses less digits than its factorization.

2154134700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22496 (or 22486 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2154134700 is about 46412.6566789707. The cubic root of 2154134700 is about 1291.4897157992.

The spelling of 2154134700 in words is "two billion, one hundred fifty-four million, one hundred thirty-four thousand, seven hundred".