2142723507 has 4 divisors (see below), whose sum is σ = 2856964680. Its totient is φ = 1428482336.

The previous prime is 2142723419. The next prime is 2142723511. The reversal of 2142723507 is 7053272412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142723507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142723577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357120582 + ... + 357120587.

It is an arithmetic number, because the mean of its divisors is an integer number (714241170).

Almost surely, 2^2142723507 is an apocalyptic number.

2142723507 is a deficient number, since it is larger than the sum of its proper divisors (714241173).

2142723507 is an equidigital number, since it uses as much as digits as its factorization.

2142723507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714241172.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 2142723507 is about 46289.5615338923. The cubic root of 2142723507 is about 1289.2051885354.

Adding to 2142723507 its reverse (7053272412), we get a palindrome (9195995919).

The spelling of 2142723507 in words is "two billion, one hundred forty-two million, seven hundred twenty-three thousand, five hundred seven".