2142145345 has 8 divisors (see below), whose sum is σ = 2576081664. Its totient is φ = 1710044784.

The previous prime is 2142145337. The next prime is 2142145351. The reversal of 2142145345 is 5435412412.

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

It is a cyclic number.

It is not a de Polignac number, because 2142145345 - 2³ = 2142145337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456369 + ... + 461038.

It is an arithmetic number, because the mean of its divisors is an integer number (322010208).

Almost surely, 2^2142145345 is an apocalyptic number.

It is an amenable number.

2142145345 is a deficient number, since it is larger than the sum of its proper divisors (433936319).

2142145345 is an equidigital number, since it uses as much as digits as its factorization.

2142145345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917879.

The product of its digits is 19200, while the sum is 31.

The square root of 2142145345 is about 46283.3160544920. The cubic root of 2142145345 is about 1289.0892245146.

Adding to 2142145345 its reverse (5435412412), we get a palindrome (7577557757).

It can be divided in two parts, 21421 and 45345, that added together give a palindrome (66766).

The spelling of 2142145345 in words is "two billion, one hundred forty-two million, one hundred forty-five thousand, three hundred forty-five".