1825360181 has 2 divisors, whose sum is σ = 1825360182. Its totient is φ = 1825360180.

The previous prime is 1825360177. The next prime is 1825360211. The reversal of 1825360181 is 1810635281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1760557681 + 64802500 = 41959^2 + 8050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825360181 - 2² = 1825360177 is a prime.

It is a super-2 number, since 2×1825360181² = 6663879580760705522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825360151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912680090 + 912680091.

It is an arithmetic number, because the mean of its divisors is an integer number (912680091).

Almost surely, 2^1825360181 is an apocalyptic number.

It is an amenable number.

1825360181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825360181 is an equidigital number, since it uses as much as digits as its factorization.

1825360181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1825360181 is about 42724.2341183549. The cubic root of 1825360181 is about 1222.1265832569.

The spelling of 1825360181 in words is "one billion, eight hundred twenty-five million, three hundred sixty thousand, one hundred eighty-one".