1065261500 has 24 divisors (see below), whose sum is σ = 2326532208. Its totient is φ = 426104400.

The previous prime is 1065261473. The next prime is 1065261511. The reversal of 1065261500 is 51625601.

It is a super-2 number, since 2×1065261500² = 2269564126764500000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065261500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064762 + ... + 1065761.

It is an arithmetic number, because the mean of its divisors is an integer number (96938842).

Almost surely, 2^1065261500 is an apocalyptic number.

1065261500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065261500 is an abundant number, since it is smaller than the sum of its proper divisors (1261270708).

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

1065261500 is a wasteful number, since it uses less digits than its factorization.

1065261500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130542 (or 2130530 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1065261500 is about 32638.3440143645. The cubic root of 1065261500 is about 1021.2970491696.

The spelling of 1065261500 in words is "one billion, sixty-five million, two hundred sixty-one thousand, five hundred".