920491459 has 2 divisors, whose sum is σ = 920491460. Its totient is φ = 920491458.

The previous prime is 920491447. The next prime is 920491519. The reversal of 920491459 is 954194029.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920491459 - 2¹⁵ = 920458691 is a prime.

It is not a weakly prime, because it can be changed into another prime (920491409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460245729 + 460245730.

It is an arithmetic number, because the mean of its divisors is an integer number (460245730).

Almost surely, 2^920491459 is an apocalyptic number.

920491459 is a deficient number, since it is larger than the sum of its proper divisors (1).

920491459 is an equidigital number, since it uses as much as digits as its factorization.

920491459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 920491459 is about 30339.6021562578. The cubic root of 920491459 is about 972.7619792784.

The spelling of 920491459 in words is "nine hundred twenty million, four hundred ninety-one thousand, four hundred fifty-nine".