3725152181 has 2 divisors, whose sum is σ = 3725152182. Its totient is φ = 3725152180.

The previous prime is 3725152177. The next prime is 3725152201. The reversal of 3725152181 is 1812515273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3725149156 + 3025 = 61034^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 3725152181 - 2² = 3725152177 is a prime.

It is a super-2 number, since 2×3725152181² = 27753517543218113522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3725152111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1862576090 + 1862576091.

It is an arithmetic number, because the mean of its divisors is an integer number (1862576091).

Almost surely, 2^3725152181 is an apocalyptic number.

It is an amenable number.

3725152181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3725152181 is an equidigital number, since it uses as much as digits as its factorization.

3725152181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 35.

The square root of 3725152181 is about 61034.0247812644. The cubic root of 3725152181 is about 1550.1771814104.

The spelling of 3725152181 in words is "three billion, seven hundred twenty-five million, one hundred fifty-two thousand, one hundred eighty-one".