2143653155 has 16 divisors (see below), whose sum is σ = 2988064704. Its totient is φ = 1445834880.

The previous prime is 2143653151. The next prime is 2143653163. The reversal of 2143653155 is 5513563412.

It is not a de Polignac number, because 2143653155 - 2² = 2143653151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143653151) 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, 499892 + ... + 504161.

It is an arithmetic number, because the mean of its divisors is an integer number (186754044).

Almost surely, 2^2143653155 is an apocalyptic number.

2143653155 is a deficient number, since it is larger than the sum of its proper divisors (844411549).

2143653155 is a wasteful number, since it uses less digits than its factorization.

2143653155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004126.

The product of its digits is 54000, while the sum is 35.

The square root of 2143653155 is about 46299.6021041218. The cubic root of 2143653155 is about 1289.3916076314.

The spelling of 2143653155 in words is "two billion, one hundred forty-three million, six hundred fifty-three thousand, one hundred fifty-five".