2151253124 has 6 divisors (see below), whose sum is σ = 3764692974. Its totient is φ = 1075626560.

The previous prime is 2151253123. The next prime is 2151253129. The reversal of 2151253124 is 4213521512.

It can be written as a sum of positive squares in only one way, i.e., 1842126400 + 309126724 = 42920^2 + 17582^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2151253093 and 2151253102.

It is not an unprimeable number, because it can be changed into a prime (2151253123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268906637 + ... + 268906644.

It is an arithmetic number, because the mean of its divisors is an integer number (627448829).

Almost surely, 2^2151253124 is an apocalyptic number.

It is an amenable number.

2151253124 is a deficient number, since it is larger than the sum of its proper divisors (1613439850).

2151253124 is a wasteful number, since it uses less digits than its factorization.

2151253124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537813285 (or 537813283 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 2151253124 is about 46381.6032926849. The cubic root of 2151253124 is about 1290.9135855590.

Adding to 2151253124 its reverse (4213521512), we get a palindrome (6364774636).

The spelling of 2151253124 in words is "two billion, one hundred fifty-one million, two hundred fifty-three thousand, one hundred twenty-four".