45252173 has 2 divisors, whose sum is σ = 45252174. Its totient is φ = 45252172.

The previous prime is 45252161. The next prime is 45252187. The reversal of 45252173 is 37125254.

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., 44983849 + 268324 = 6707^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 45252173 - 2¹⁶ = 45186637 is a prime.

It is a super-2 number, since 2×45252173² = 4095518322443858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45282173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22626086 + 22626087.

It is an arithmetic number, because the mean of its divisors is an integer number (22626087).

Almost surely, 2^45252173 is an apocalyptic number.

It is an amenable number.

45252173 is a deficient number, since it is larger than the sum of its proper divisors (1).

45252173 is an equidigital number, since it uses as much as digits as its factorization.

45252173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 45252173 is about 6726.9735394158. The cubic root of 45252173 is about 356.3525024426.

It can be divided in two parts, 452 and 52173, that added together give a palindrome (52625).

The spelling of 45252173 in words is "forty-five million, two hundred fifty-two thousand, one hundred seventy-three".