1265193492 has 12 divisors (see below), whose sum is σ = 2952118176. Its totient is φ = 421731160.

The previous prime is 1265193481. The next prime is 1265193511. The reversal of 1265193492 is 2943915621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 52716384 + ... + 52716407.

It is an arithmetic number, because the mean of its divisors is an integer number (246009848).

Almost surely, 2^1265193492 is an apocalyptic number.

1265193492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1265193492 is an abundant number, since it is smaller than the sum of its proper divisors (1686924684).

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

1265193492 is a wasteful number, since it uses less digits than its factorization.

1265193492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105432798 (or 105432796 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 1265193492 is about 35569.5585016176. The cubic root of 1265193492 is about 1081.5642319589.

The spelling of 1265193492 in words is "one billion, two hundred sixty-five million, one hundred ninety-three thousand, four hundred ninety-two".