1064135780 has 12 divisors (see below), whose sum is σ = 2234685180. Its totient is φ = 425654304.

The previous prime is 1064135777. The next prime is 1064135827. The reversal of 1064135780 is 875314601.

It can be written as a sum of positive squares in 2 ways, for example, as 687698176 + 376437604 = 26224^2 + 19402^2 .

It is a super-2 number, since 2×1064135780² = 2264769916552416800, 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 1064135780.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26603375 + ... + 26603414.

It is an arithmetic number, because the mean of its divisors is an integer number (186223765).

Almost surely, 2^1064135780 is an apocalyptic number.

1064135780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064135780 is an abundant number, since it is smaller than the sum of its proper divisors (1170549400).

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

1064135780 is a wasteful number, since it uses less digits than its factorization.

1064135780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53206798 (or 53206796 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1064135780 is about 32621.0940956921. The cubic root of 1064135780 is about 1020.9371689168.

The spelling of 1064135780 in words is "one billion, sixty-four million, one hundred thirty-five thousand, seven hundred eighty".