775900134 has 40 divisors (see below), whose sum is σ = 1744366008. Its totient is φ = 257774400.

The previous prime is 775900129. The next prime is 775900157. The reversal of 775900134 is 431009577.

It is a happy number.

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 in 19 ways as a sum of consecutive naturals, for example, 41934 + ... + 57534.

Almost surely, 2^775900134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775900134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872183004).

775900134 is an abundant number, since it is smaller than the sum of its proper divisors (968465874).

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

775900134 is a wasteful number, since it uses less digits than its factorization.

775900134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15922 (or 15913 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 775900134 is about 27854.9840064574. The cubic root of 775900134 is about 918.9007562692.

The spelling of 775900134 in words is "seven hundred seventy-five million, nine hundred thousand, one hundred thirty-four".