134420251 has 8 divisors (see below), whose sum is σ = 153702144. Its totient is φ = 115158120.

The previous prime is 134420233. The next prime is 134420267. The reversal of 134420251 is 152024431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134420251 - 2¹¹ = 134418203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134420551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15036 + ... + 22246.

It is an arithmetic number, because the mean of its divisors is an integer number (19212768).

Almost surely, 2^134420251 is an apocalyptic number.

134420251 is a deficient number, since it is larger than the sum of its proper divisors (19281893).

134420251 is an equidigital number, since it uses as much as digits as its factorization.

134420251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 134420251 is about 11593.9747714061. The cubic root of 134420251 is about 512.2573918941.

Adding to 134420251 its reverse (152024431), we get a palindrome (286444682).

The spelling of 134420251 in words is "one hundred thirty-four million, four hundred twenty thousand, two hundred fifty-one".