1145538455492 has 12 divisors (see below), whose sum is σ = 2091852831936. Its totient is φ = 547866217800.

The previous prime is 1145538455461. The next prime is 1145538455533. The reversal of 1145538455492 is 2945548355411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6225752384 + ... + 6225752567.

It is an arithmetic number, because the mean of its divisors is an integer number (174321069328).

Almost surely, 2^{1145538455492} is an apocalyptic number.

It is an amenable number.

1145538455492 is a deficient number, since it is larger than the sum of its proper divisors (946314376444).

1145538455492 is a wasteful number, since it uses less digits than its factorization.

1145538455492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12451504978 (or 12451504976 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 56.

The spelling of 1145538455492 in words is "one trillion, one hundred forty-five billion, five hundred thirty-eight million, four hundred fifty-five thousand, four hundred ninety-two".