1265758212 has 48 divisors (see below), whose sum is σ = 2987046720. Its totient is φ = 417134592.

The previous prime is 1265758181. The next prime is 1265758213. The reversal of 1265758212 is 2128575621.

Its product of digits (67200) is a multiple of the sum of its prime factors (2100).

It is not an unprimeable number, because it can be changed into a prime (1265758213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1253964 + ... + 1254972.

It is an arithmetic number, because the mean of its divisors is an integer number (62230140).

Almost surely, 2^1265758212 is an apocalyptic number.

1265758212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1265758212 is an abundant number, since it is smaller than the sum of its proper divisors (1721288508).

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

1265758212 is a wasteful number, since it uses less digits than its factorization.

1265758212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100 (or 2098 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 1265758212 is about 35577.4958646614. The cubic root of 1265758212 is about 1081.7251270065.

The spelling of 1265758212 in words is "one billion, two hundred sixty-five million, seven hundred fifty-eight thousand, two hundred twelve".