2143077555 has 32 divisors (see below), whose sum is σ = 3674732544. Its totient is φ = 1063725696.

The previous prime is 2143077553. The next prime is 2143077589. The reversal of 2143077555 is 5557703412.

It is a happy number.

It is not a de Polignac number, because 2143077555 - 2¹ = 2143077553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2143077553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71179 + ... + 96708.

It is an arithmetic number, because the mean of its divisors is an integer number (114835392).

Almost surely, 2^2143077555 is an apocalyptic number.

2143077555 is a deficient number, since it is larger than the sum of its proper divisors (1531654989).

2143077555 is a wasteful number, since it uses less digits than its factorization.

2143077555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167955.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 2143077555 is about 46293.3856506521. The cubic root of 2143077555 is about 1289.2761909116.

The spelling of 2143077555 in words is "two billion, one hundred forty-three million, seventy-seven thousand, five hundred fifty-five".