135171451 has 2 divisors, whose sum is σ = 135171452. Its totient is φ = 135171450.

The previous prime is 135171401. The next prime is 135171457. The reversal of 135171451 is 154171531.

135171451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135171451 - 2¹⁷ = 135040379 is a prime.

It is not a weakly prime, because it can be changed into another prime (135171457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67585725 + 67585726.

It is an arithmetic number, because the mean of its divisors is an integer number (67585726).

Almost surely, 2^135171451 is an apocalyptic number.

135171451 is a deficient number, since it is larger than the sum of its proper divisors (1).

135171451 is an equidigital number, since it uses as much as digits as its factorization.

135171451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 28.

The square root of 135171451 is about 11626.3257738634. The cubic root of 135171451 is about 513.2098603446.

The spelling of 135171451 in words is "one hundred thirty-five million, one hundred seventy-one thousand, four hundred fifty-one".