45234109 has 2 divisors, whose sum is σ = 45234110. Its totient is φ = 45234108.

The previous prime is 45234097. The next prime is 45234131. The reversal of 45234109 is 90143254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45091225 + 142884 = 6715^2 + 378^2 .

It is a cyclic number.

It is not a de Polignac number, because 45234109 - 2⁹ = 45233597 is a prime.

It is a super-2 number, since 2×45234109² = 4092249234047762, 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 (45234139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22617054 + 22617055.

It is an arithmetic number, because the mean of its divisors is an integer number (22617055).

Almost surely, 2^45234109 is an apocalyptic number.

It is an amenable number.

45234109 is a deficient number, since it is larger than the sum of its proper divisors (1).

45234109 is an equidigital number, since it uses as much as digits as its factorization.

45234109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 45234109 is about 6725.6307510894. The cubic root of 45234109 is about 356.3050792442.

The spelling of 45234109 in words is "forty-five million, two hundred thirty-four thousand, one hundred nine".