2142290845 has 8 divisors (see below), whose sum is σ = 2579016960. Its totient is φ = 1708320720.

The previous prime is 2142290827. The next prime is 2142290849. The reversal of 2142290845 is 5480922412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2142290845 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142290849) 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 7 ways as a sum of consecutive naturals, for example, 687285 + ... + 690394.

It is an arithmetic number, because the mean of its divisors is an integer number (322377120).

Almost surely, 2^2142290845 is an apocalyptic number.

It is an amenable number.

2142290845 is a deficient number, since it is larger than the sum of its proper divisors (436726115).

2142290845 is a wasteful number, since it uses less digits than its factorization.

2142290845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377995.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 2142290845 is about 46284.8878685041. The cubic root of 2142290845 is about 1289.1184099347.

The spelling of 2142290845 in words is "two billion, one hundred forty-two million, two hundred ninety thousand, eight hundred forty-five".