45488491 has 2 divisors, whose sum is σ = 45488492. Its totient is φ = 45488490.

The previous prime is 45488473. The next prime is 45488533. The reversal of 45488491 is 19488454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45488491 - 2¹³ = 45480299 is a prime.

It is not a weakly prime, because it can be changed into another prime (45488431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22744245 + 22744246.

It is an arithmetic number, because the mean of its divisors is an integer number (22744246).

Almost surely, 2^45488491 is an apocalyptic number.

45488491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45488491 is an equidigital number, since it uses as much as digits as its factorization.

45488491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 43.

The square root of 45488491 is about 6744.5156238236. The cubic root of 45488491 is about 356.9717459403.

The spelling of 45488491 in words is "forty-five million, four hundred eighty-eight thousand, four hundred ninety-one".