2142355245 has 32 divisors (see below), whose sum is σ = 3511529472. Its totient is φ = 1114731072.

The previous prime is 2142355199. The next prime is 2142355261. The reversal of 2142355245 is 5425532412.

It is a happy number.

It is not a de Polignac number, because 2142355245 - 2²¹ = 2140258093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854664 + ... + 857166.

It is an arithmetic number, because the mean of its divisors is an integer number (109735296).

Almost surely, 2^2142355245 is an apocalyptic number.

It is an amenable number.

2142355245 is a deficient number, since it is larger than the sum of its proper divisors (1369174227).

2142355245 is a wasteful number, since it uses less digits than its factorization.

2142355245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881.

The product of its digits is 48000, while the sum is 33.

The square root of 2142355245 is about 46285.5835547096. The cubic root of 2142355245 is about 1289.1313273208.

Adding to 2142355245 its reverse (5425532412), we get a palindrome (7567887657).

The spelling of 2142355245 in words is "two billion, one hundred forty-two million, three hundred fifty-five thousand, two hundred forty-five".