134355221 has 32 divisors (see below), whose sum is σ = 182784000. Its totient is φ = 95359680.

The previous prime is 134355211. The next prime is 134355227. The reversal of 134355221 is 122553431.

It is a happy number.

It is not a de Polignac number, because 134355221 - 2²² = 130160917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134355227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78230 + ... + 79928.

It is an arithmetic number, because the mean of its divisors is an integer number (5712000).

Almost surely, 2^134355221 is an apocalyptic number.

134355221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134355221 is a deficient number, since it is larger than the sum of its proper divisors (48428779).

134355221 is a wasteful number, since it uses less digits than its factorization.

134355221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its digits is 3600, while the sum is 26.

The square root of 134355221 is about 11591.1699582053. The cubic root of 134355221 is about 512.1747717251.

The spelling of 134355221 in words is "one hundred thirty-four million, three hundred fifty-five thousand, two hundred twenty-one".