2142030445 has 16 divisors (see below), whose sum is σ = 2639997360. Its totient is φ = 1667468800.

The previous prime is 2142030439. The next prime is 2142030461. The reversal of 2142030445 is 5440302412.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1107957796 + 1034072649 = 33286^2 + 32157^2 .

It is not a de Polignac number, because 2142030445 - 2¹⁷ = 2141899373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66315 + ... + 93175.

It is an arithmetic number, because the mean of its divisors is an integer number (164999835).

Almost surely, 2^2142030445 is an apocalyptic number.

It is an amenable number.

2142030445 is a deficient number, since it is larger than the sum of its proper divisors (497966915).

2142030445 is a wasteful number, since it uses less digits than its factorization.

2142030445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27296.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2142030445 is about 46282.0747698285. The cubic root of 2142030445 is about 1289.0661761252.

Adding to 2142030445 its reverse (5440302412), we get a palindrome (7582332857).

The spelling of 2142030445 in words is "two billion, one hundred forty-two million, thirty thousand, four hundred forty-five".