1491763148 has 12 divisors (see below), whose sum is σ = 2610862632. Its totient is φ = 745802400.

The previous prime is 1491763043. The next prime is 1491763159. The reversal of 1491763148 is 8413671941.

It is a junction number, because it is equal to n+sod(n) for n = 1491763099 and 1491763108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49736 + ... + 73872.

It is an arithmetic number, because the mean of its divisors is an integer number (217571886).

Almost surely, 2^1491763148 is an apocalyptic number.

It is an amenable number.

1491763148 is a deficient number, since it is larger than the sum of its proper divisors (1119099484).

1491763148 is a wasteful number, since it uses less digits than its factorization.

1491763148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39592 (or 39590 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 1491763148 is about 38623.3497770455. The cubic root of 1491763148 is about 1142.6150973748.

The spelling of 1491763148 in words is "one billion, four hundred ninety-one million, seven hundred sixty-three thousand, one hundred forty-eight".