1491096120 has 64 divisors (see below), whose sum is σ = 4483775520. Its totient is φ = 396693504.

The previous prime is 1491096119. The next prime is 1491096151. The reversal of 1491096120 is 216901941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37612 + ... + 66308.

Almost surely, 2^1491096120 is an apocalyptic number.

1491096120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1491096120 is an abundant number, since it is smaller than the sum of its proper divisors (2992679400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1491096120 is a wasteful number, since it uses less digits than its factorization.

1491096120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29144 (or 29140 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1491096120 is about 38614.7137759689. The cubic root of 1491096120 is about 1142.4447687518. Note that the first 3 decimals are identical.

The spelling of 1491096120 in words is "one billion, four hundred ninety-one million, ninety-six thousand, one hundred twenty".