2451143140 has 12 divisors (see below), whose sum is σ = 5147400636. Its totient is φ = 980457248.

The previous prime is 2451143137. The next prime is 2451143159. The reversal of 2451143140 is 413411542.

It can be written as a sum of positive squares in 2 ways, for example, as 1051186084 + 1399957056 = 32422^2 + 37416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61278559 + ... + 61278598.

It is an arithmetic number, because the mean of its divisors is an integer number (428950053).

Almost surely, 2^2451143140 is an apocalyptic number.

2451143140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2451143140 is an abundant number, since it is smaller than the sum of its proper divisors (2696257496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2451143140 is a wasteful number, since it uses less digits than its factorization.

2451143140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122557166 (or 122557164 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2451143140 is about 49509.0207941947. The cubic root of 2451143140 is about 1348.3093862320.

Adding to 2451143140 its reverse (413411542), we get a palindrome (2864554682).

The spelling of 2451143140 in words is "two billion, four hundred fifty-one million, one hundred forty-three thousand, one hundred forty".