1265156082 has 24 divisors (see below), whose sum is σ = 2902417596. Its totient is φ = 396911616.

The previous prime is 1265156063. The next prime is 1265156089. The reversal of 1265156082 is 2806515621.

1265156082 is a `hidden beast` number, since 1 + 2 + 6 + 515 + 60 + 82 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1261031121 + 4124961 = 35511^2 + 2031^2 .

It is not an unprimeable number, because it can be changed into a prime (1265156089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2066943 + ... + 2067554.

Almost surely, 2^1265156082 is an apocalyptic number.

1265156082 is an abundant number, since it is smaller than the sum of its proper divisors (1637261514).

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

1265156082 is a wasteful number, since it uses less digits than its factorization.

1265156082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134522 (or 4134519 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1265156082 is about 35569.0326267106. The cubic root of 1265156082 is about 1081.5535717405.

The spelling of 1265156082 in words is "one billion, two hundred sixty-five million, one hundred fifty-six thousand, eighty-two".