134220453 has 4 divisors (see below), whose sum is σ = 178960608. Its totient is φ = 89480300.

The previous prime is 134220431. The next prime is 134220461. The reversal of 134220453 is 354022431.

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 a cyclic number.

It is not a de Polignac number, because 134220453 - 2⁹ = 134219941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134220413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22370073 + ... + 22370078.

It is an arithmetic number, because the mean of its divisors is an integer number (44740152).

Almost surely, 2^134220453 is an apocalyptic number.

It is an amenable number.

134220453 is a deficient number, since it is larger than the sum of its proper divisors (44740155).

134220453 is an equidigital number, since it uses as much as digits as its factorization.

134220453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44740154.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 134220453 is about 11585.3551089295. The cubic root of 134220453 is about 512.0034649932.

Adding to 134220453 its reverse (354022431), we get a palindrome (488242884).

The spelling of 134220453 in words is "one hundred thirty-four million, two hundred twenty thousand, four hundred fifty-three".