1265565332 has 6 divisors (see below), whose sum is σ = 2214739338. Its totient is φ = 632782664.

The previous prime is 1265565299. The next prime is 1265565341. The reversal of 1265565332 is 2335655621.

It can be written as a sum of positive squares in only one way, i.e., 1197436816 + 68128516 = 34604^2 + 8254^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 158195663 + ... + 158195670.

It is an arithmetic number, because the mean of its divisors is an integer number (369123223).

Almost surely, 2^1265565332 is an apocalyptic number.

It is an amenable number.

1265565332 is a deficient number, since it is larger than the sum of its proper divisors (949174006).

1265565332 is a wasteful number, since it uses less digits than its factorization.

1265565332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316391337 (or 316391335 counting only the distinct ones).

The product of its digits is 162000, while the sum is 38.

The square root of 1265565332 is about 35574.7850590836. The cubic root of 1265565332 is about 1081.6701787183.

The spelling of 1265565332 in words is "one billion, two hundred sixty-five million, five hundred sixty-five thousand, three hundred thirty-two".