2142770506 has 4 divisors (see below), whose sum is σ = 3214155762. Its totient is φ = 1071385252.

The previous prime is 2142770501. The next prime is 2142770519. The reversal of 2142770506 is 6050772412.

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

It can be written as a sum of positive squares in only one way, i.e., 1901744881 + 241025625 = 43609^2 + 15525^2 .

It is not an unprimeable number, because it can be changed into a prime (2142770501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535692625 + ... + 535692628.

Almost surely, 2^2142770506 is an apocalyptic number.

2142770506 is a deficient number, since it is larger than the sum of its proper divisors (1071385256).

2142770506 is a wasteful number, since it uses less digits than its factorization.

2142770506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071385255.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 2142770506 is about 46290.0691941587. The cubic root of 2142770506 is about 1289.2146143762.

The spelling of 2142770506 in words is "two billion, one hundred forty-two million, seven hundred seventy thousand, five hundred six".