2251142330 has 32 divisors (see below), whose sum is σ = 4115899008. Its totient is φ = 886312000.

The previous prime is 2251142323. The next prime is 2251142339. The reversal of 2251142330 is 332411522.

2251142330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2251142296 and 2251142305.

It is not an unprimeable number, because it can be changed into a prime (2251142339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495449 + ... + 499971.

It is an arithmetic number, because the mean of its divisors is an integer number (128621844).

Almost surely, 2^2251142330 is an apocalyptic number.

2251142330 is a deficient number, since it is larger than the sum of its proper divisors (1864756678).

2251142330 is a wasteful number, since it uses less digits than its factorization.

2251142330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2251142330 is about 47446.2045900407. The cubic root of 2251142330 is about 1310.5924189574.

Adding to 2251142330 its reverse (332411522), we get a palindrome (2583553852).

The spelling of 2251142330 in words is "two billion, two hundred fifty-one million, one hundred forty-two thousand, three hundred thirty".