2143551141 has 16 divisors (see below), whose sum is σ = 3278072320. Its totient is φ = 1382935680.

The previous prime is 2143551119. The next prime is 2143551169. The reversal of 2143551141 is 1411553412.

2143551141 is a `hidden beast` number, since 2 + 143 + 5 + 511 + 4 + 1 = 666.

It is not a de Polignac number, because 2143551141 - 2⁷ = 2143551013 is a prime.

It is a super-2 number, since 2×2143551141² = 9189622988164803762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143551181) 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, 1279660 + ... + 1281333.

It is an arithmetic number, because the mean of its divisors is an integer number (204879520).

Almost surely, 2^2143551141 is an apocalyptic number.

It is an amenable number.

2143551141 is a deficient number, since it is larger than the sum of its proper divisors (1134521179).

2143551141 is a wasteful number, since it uses less digits than its factorization.

2143551141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561033 (or 2561027 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 2143551141 is about 46298.5004184801. The cubic root of 2143551141 is about 1289.3711537501.

It can be divided in two parts, 214355 and 1141, that added together give a triangular number (215496 = T₆₅₆).

The spelling of 2143551141 in words is "two billion, one hundred forty-three million, five hundred fifty-one thousand, one hundred forty-one".