134125221 has 4 divisors (see below), whose sum is σ = 178833632. Its totient is φ = 89416812.

The previous prime is 134125219. The next prime is 134125241. The reversal of 134125221 is 122521431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 134125221 - 2¹ = 134125219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134125241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22354201 + ... + 22354206.

It is an arithmetic number, because the mean of its divisors is an integer number (44708408).

Almost surely, 2^134125221 is an apocalyptic number.

It is an amenable number.

134125221 is a deficient number, since it is larger than the sum of its proper divisors (44708411).

134125221 is an equidigital number, since it uses as much as digits as its factorization.

134125221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44708410.

The product of its digits is 480, while the sum is 21.

The square root of 134125221 is about 11581.2443631934. The cubic root of 134125221 is about 511.8823442319.

Adding to 134125221 its reverse (122521431), we get a palindrome (256646652).

It can be divided in two parts, 1341 and 25221, that added together give a palindrome (26562).

The spelling of 134125221 in words is "one hundred thirty-four million, one hundred twenty-five thousand, two hundred twenty-one".