1491130492254 has 24 divisors (see below), whose sum is σ = 3479304482472. Its totient is φ = 458809382160.

The previous prime is 1491130492253. The next prime is 1491130492261. The reversal of 1491130492254 is 4522940311941.

1491130492254 is a `hidden beast` number, since 1 + 4 + 9 + 1 + 1 + 304 + 92 + 254 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491130492253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3186176032 + ... + 3186176499.

It is an arithmetic number, because the mean of its divisors is an integer number (144971020103).

Almost surely, 2^{1491130492254} is an apocalyptic number.

1491130492254 is an abundant number, since it is smaller than the sum of its proper divisors (1988173990218).

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

1491130492254 is a wasteful number, since it uses less digits than its factorization.

1491130492254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372352552 (or 6372352549 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 1491130492254 in words is "one trillion, four hundred ninety-one billion, one hundred thirty million, four hundred ninety-two thousand, two hundred fifty-four".