3781134 has 48 divisors (see below), whose sum is σ = 9781200. Its totient is φ = 1079568.

The previous prime is 3781121. The next prime is 3781147. The reversal of 3781134 is 4311873.

3781134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3781121) and next prime (3781147).

It is a Harshad number since it is a multiple of its sum of digits (27).

3781134 is a modest number, since divided by 1134 gives 378 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 3781098 and 3781107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1932 + ... + 3360.

It is an arithmetic number, because the mean of its divisors is an integer number (203775).

Almost surely, 2^3781134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3781134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4890600).

3781134 is an abundant number, since it is smaller than the sum of its proper divisors (6000066).

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

3781134 is a wasteful number, since it uses less digits than its factorization.

3781134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1441 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 3781134 is about 1944.5138209846. The cubic root of 3781134 is about 155.7903989804.

The spelling of 3781134 in words is "three million, seven hundred eighty-one thousand, one hundred thirty-four".