45252191 has 2 divisors, whose sum is σ = 45252192. Its totient is φ = 45252190.

The previous prime is 45252187. The next prime is 45252203. The reversal of 45252191 is 19125254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45252191 - 2² = 45252187 is a prime.

It is equal to p_2732528 and since 45252191 and 2732528 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45252101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22626095 + 22626096.

It is an arithmetic number, because the mean of its divisors is an integer number (22626096).

Almost surely, 2^45252191 is an apocalyptic number.

45252191 is a deficient number, since it is larger than the sum of its proper divisors (1).

45252191 is an equidigital number, since it uses as much as digits as its factorization.

45252191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 45252191 is about 6726.9748773130. The cubic root of 45252191 is about 356.3525496915.

The spelling of 45252191 in words is "forty-five million, two hundred fifty-two thousand, one hundred ninety-one".