45194437 has 2 divisors, whose sum is σ = 45194438. Its totient is φ = 45194436.

The previous prime is 45194431. The next prime is 45194459. The reversal of 45194437 is 73449154.

45194437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29441476 + 15752961 = 5426^2 + 3969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45194437 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45194396 and 45194405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45194431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22597218 + 22597219.

It is an arithmetic number, because the mean of its divisors is an integer number (22597219).

Almost surely, 2^45194437 is an apocalyptic number.

It is an amenable number.

45194437 is a deficient number, since it is larger than the sum of its proper divisors (1).

45194437 is an equidigital number, since it uses as much as digits as its factorization.

45194437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 45194437 is about 6722.6807896850. The cubic root of 45194437 is about 356.2008844980.

The spelling of 45194437 in words is "forty-five million, one hundred ninety-four thousand, four hundred thirty-seven".