34128751 has 2 divisors, whose sum is σ = 34128752. Its totient is φ = 34128750.

The previous prime is 34128749. The next prime is 34128761. The reversal of 34128751 is 15782143.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34128751 - 2¹ = 34128749 is a prime.

Together with 34128749, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34128701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17064375 + 17064376.

It is an arithmetic number, because the mean of its divisors is an integer number (17064376).

Almost surely, 2^34128751 is an apocalyptic number.

34128751 is a deficient number, since it is larger than the sum of its proper divisors (1).

34128751 is an equidigital number, since it uses as much as digits as its factorization.

34128751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 34128751 is about 5841.9817699134. The cubic root of 34128751 is about 324.3695898034.

It can be divided in two parts, 341 and 28751, that added together give a palindrome (29092).

The spelling of 34128751 in words is "thirty-four million, one hundred twenty-eight thousand, seven hundred fifty-one".