45670181 has 2 divisors, whose sum is σ = 45670182. Its totient is φ = 45670180.

The previous prime is 45670147. The next prime is 45670217. The reversal of 45670181 is 18107654.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43890625 + 1779556 = 6625^2 + 1334^2 .

It is a cyclic number.

It is not a de Polignac number, because 45670181 - 2⁶ = 45670117 is a prime.

It is a super-2 number, since 2×45670181² = 4171530865145522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45675181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22835090 + 22835091.

It is an arithmetic number, because the mean of its divisors is an integer number (22835091).

Almost surely, 2^45670181 is an apocalyptic number.

It is an amenable number.

45670181 is a deficient number, since it is larger than the sum of its proper divisors (1).

45670181 is an equidigital number, since it uses as much as digits as its factorization.

45670181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 45670181 is about 6757.9716631546. The cubic root of 45670181 is about 357.4463864048.

The spelling of 45670181 in words is "forty-five million, six hundred seventy thousand, one hundred eighty-one".