2143730377 has 4 divisors (see below), whose sum is σ = 2151305680. Its totient is φ = 2136155076.

The previous prime is 2143730371. The next prime is 2143730389. The reversal of 2143730377 is 7730373412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2143730377 - 2¹¹ = 2143728329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143730371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3787227 + ... + 3787792.

It is an arithmetic number, because the mean of its divisors is an integer number (537826420).

Almost surely, 2^2143730377 is an apocalyptic number.

It is an amenable number.

2143730377 is a deficient number, since it is larger than the sum of its proper divisors (7575303).

2143730377 is an equidigital number, since it uses as much as digits as its factorization.

2143730377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575302.

The product of its (nonzero) digits is 74088, while the sum is 37.

The square root of 2143730377 is about 46300.4360346639. The cubic root of 2143730377 is about 1289.4070902672.

The spelling of 2143730377 in words is "two billion, one hundred forty-three million, seven hundred thirty thousand, three hundred seventy-seven".