2251142345 has 32 divisors (see below), whose sum is σ = 2912855040. Its totient is φ = 1666725120.

The previous prime is 2251142339. The next prime is 2251142347. The reversal of 2251142345 is 5432411522.

It is not a de Polignac number, because 2251142345 - 2¹⁶ = 2251076809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2251142347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 335039 + ... + 341691.

It is an arithmetic number, because the mean of its divisors is an integer number (91026720).

Almost surely, 2^2251142345 is an apocalyptic number.

It is an amenable number.

2251142345 is a deficient number, since it is larger than the sum of its proper divisors (661712695).

2251142345 is a wasteful number, since it uses less digits than its factorization.

2251142345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6785.

The product of its digits is 9600, while the sum is 29.

The square root of 2251142345 is about 47446.2047481145. The cubic root of 2251142345 is about 1310.5924218684.

Adding to 2251142345 its reverse (5432411522), we get a palindrome (7683553867).

The spelling of 2251142345 in words is "two billion, two hundred fifty-one million, one hundred forty-two thousand, three hundred forty-five".