45493187 has 2 divisors, whose sum is σ = 45493188. Its totient is φ = 45493186.

The previous prime is 45493169. The next prime is 45493193. The reversal of 45493187 is 78139454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45493187 - 2¹⁴ = 45476803 is a prime.

It is not a weakly prime, because it can be changed into another prime (45493157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22746593 + 22746594.

It is an arithmetic number, because the mean of its divisors is an integer number (22746594).

Almost surely, 2^45493187 is an apocalyptic number.

45493187 is a deficient number, since it is larger than the sum of its proper divisors (1).

45493187 is an equidigital number, since it uses as much as digits as its factorization.

45493187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 45493187 is about 6744.8637495505. The cubic root of 45493187 is about 356.9840294990.

The spelling of 45493187 in words is "forty-five million, four hundred ninety-three thousand, one hundred eighty-seven".