2151241340 has 12 divisors (see below), whose sum is σ = 4517606856. Its totient is φ = 860496528.

The previous prime is 2151241297. The next prime is 2151241361. The reversal of 2151241340 is 431421512.

It is a congruent number.

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, 53781014 + ... + 53781053.

It is an arithmetic number, because the mean of its divisors is an integer number (376467238).

Almost surely, 2^2151241340 is an apocalyptic number.

2151241340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151241340 is an abundant number, since it is smaller than the sum of its proper divisors (2366365516).

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

2151241340 is a wasteful number, since it uses less digits than its factorization.

2151241340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107562076 (or 107562074 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2151241340 is about 46381.4762593861. The cubic root of 2151241340 is about 1290.9112284594.

Adding to 2151241340 its reverse (431421512), we get a palindrome (2582662852).

The spelling of 2151241340 in words is "two billion, one hundred fifty-one million, two hundred forty-one thousand, three hundred forty".