34125381 has 20 divisors (see below), whose sum is σ = 51135084. Its totient is φ = 22680000.

The previous prime is 34125379. The next prime is 34125391. The reversal of 34125381 is 18352143.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29062881 + 5062500 = 5391^2 + 2250^2 .

It is not a de Polignac number, because 34125381 - 2¹ = 34125379 is a prime.

It is a super-2 number, since 2×34125381² = 2329083256790322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34125331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48331 + ... + 49031.

Almost surely, 2^34125381 is an apocalyptic number.

It is an amenable number.

34125381 is a deficient number, since it is larger than the sum of its proper divisors (17009703).

34125381 is an equidigital number, since it uses as much as digits as its factorization.

34125381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1305 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 34125381 is about 5841.6933332725. The cubic root of 34125381 is about 324.3589129648.

The spelling of 34125381 in words is "thirty-four million, one hundred twenty-five thousand, three hundred eighty-one".