2115964143 has 24 divisors (see below), whose sum is σ = 3376889568. Its totient is φ = 1269937152.

The previous prime is 2115964099. The next prime is 2115964163. The reversal of 2115964143 is 3414695112.

It is a happy number.

2115964143 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 9 + 641 + 4 + 3 = 666.

It is not a de Polignac number, because 2115964143 - 2⁶ = 2115964079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2115964098 and 2115964107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115964163) 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, 297130 + ... + 304167.

It is an arithmetic number, because the mean of its divisors is an integer number (140703732).

Almost surely, 2^2115964143 is an apocalyptic number.

2115964143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2115964143 is a deficient number, since it is larger than the sum of its proper divisors (1260925425).

2115964143 is a wasteful number, since it uses less digits than its factorization.

2115964143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601343 (or 601340 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 2115964143 is about 45999.6102483488. The cubic root of 2115964143 is about 1283.8159528177.

The spelling of 2115964143 in words is "two billion, one hundred fifteen million, nine hundred sixty-four thousand, one hundred forty-three".