1491227458 has 8 divisors (see below), whose sum is σ = 2556389952. Its totient is φ = 639097476.

The previous prime is 1491227453. The next prime is 1491227459. The reversal of 1491227458 is 8547221941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1491227453) 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 in 3 ways as a sum of consecutive naturals, for example, 53258110 + ... + 53258137.

It is an arithmetic number, because the mean of its divisors is an integer number (319548744).

Almost surely, 2^1491227458 is an apocalyptic number.

1491227458 is a deficient number, since it is larger than the sum of its proper divisors (1065162494).

1491227458 is a wasteful number, since it uses less digits than its factorization.

1491227458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106516256.

The product of its digits is 161280, while the sum is 43.

The square root of 1491227458 is about 38616.4143596994. The cubic root of 1491227458 is about 1142.4783105210.

The spelling of 1491227458 in words is "one billion, four hundred ninety-one million, two hundred twenty-seven thousand, four hundred fifty-eight".