2142370369 has 4 divisors (see below), whose sum is σ = 2143168596. Its totient is φ = 2141572144.

The previous prime is 2142370367. The next prime is 2142370471. The reversal of 2142370369 is 9630732412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1429747344 + 712623025 = 37812^2 + 26695^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142370369 - 2¹ = 2142370367 is a prime.

It is a super-2 number, since 2×2142370369² = 9179501595938392322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142370367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395074 + ... + 400459.

It is an arithmetic number, because the mean of its divisors is an integer number (535792149).

Almost surely, 2^2142370369 is an apocalyptic number.

It is an amenable number.

2142370369 is a deficient number, since it is larger than the sum of its proper divisors (798227).

2142370369 is an equidigital number, since it uses as much as digits as its factorization.

2142370369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798226.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 2142370369 is about 46285.7469314259. The cubic root of 2142370369 is about 1289.1343608632.

The spelling of 2142370369 in words is "two billion, one hundred forty-two million, three hundred seventy thousand, three hundred sixty-nine".