2124541251 has 32 divisors (see below), whose sum is σ = 3600737280. Its totient is φ = 1212798528.

The previous prime is 2124541249. The next prime is 2124541253. The reversal of 2124541251 is 1521454212.

It is a happy number.

2124541251 is a `hidden beast` number, since 2 + 1 + 245 + 412 + 5 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2124541249) and next prime (2124541253).

It is not a de Polignac number, because 2124541251 - 2¹ = 2124541249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2124541253) 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, 202210 + ... + 212456.

It is an arithmetic number, because the mean of its divisors is an integer number (112523040).

Almost surely, 2^2124541251 is an apocalyptic number.

2124541251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2124541251 is a deficient number, since it is larger than the sum of its proper divisors (1476196029).

2124541251 is a wasteful number, since it uses less digits than its factorization.

2124541251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360 (or 11354 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2124541251 is about 46092.7461863578. The cubic root of 2124541251 is about 1285.5482731525.

Adding to 2124541251 its reverse (1521454212), we get a palindrome (3645995463).

The spelling of 2124541251 in words is "two billion, one hundred twenty-four million, five hundred forty-one thousand, two hundred fifty-one".