45825181 has 2 divisors, whose sum is σ = 45825182. Its totient is φ = 45825180.

The previous prime is 45825179. The next prime is 45825209. The reversal of 45825181 is 18152854.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40208281 + 5616900 = 6341^2 + 2370^2 .

It is a cyclic number.

It is not a de Polignac number, because 45825181 - 2¹ = 45825179 is a prime.

It is a super-2 number, since 2×45825181² = 4199894427365522, which contains 22 as substring.

Together with 45825179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45825151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22912590 + 22912591.

It is an arithmetic number, because the mean of its divisors is an integer number (22912591).

Almost surely, 2^45825181 is an apocalyptic number.

It is an amenable number.

45825181 is a deficient number, since it is larger than the sum of its proper divisors (1).

45825181 is an equidigital number, since it uses as much as digits as its factorization.

45825181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12800, while the sum is 34.

The square root of 45825181 is about 6769.4298873687. The cubic root of 45825181 is about 357.8503088172.

The spelling of 45825181 in words is "forty-five million, eight hundred twenty-five thousand, one hundred eighty-one".