134641553 has 4 divisors (see below), whose sum is σ = 134669040. Its totient is φ = 134614068.

The previous prime is 134641523. The next prime is 134641583. The reversal of 134641553 is 355146431.

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, and also an emirpimes, since its reverse is a distinct semiprime: 355146431 = 67 ⋅5300693.

It is an interprime number because it is at equal distance from previous prime (134641523) and next prime (134641583).

It is a cyclic number.

It is not a de Polignac number, because 134641553 - 2¹² = 134637457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134641523) 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, 4175 + ... + 16932.

It is an arithmetic number, because the mean of its divisors is an integer number (33667260).

Almost surely, 2^134641553 is an apocalyptic number.

It is an amenable number.

134641553 is a deficient number, since it is larger than the sum of its proper divisors (27487).

134641553 is an equidigital number, since it uses as much as digits as its factorization.

134641553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27486.

The product of its digits is 21600, while the sum is 32.

The square root of 134641553 is about 11603.5146830605. The cubic root of 134641553 is about 512.5383550910.

Adding to 134641553 its reverse (355146431), we get a palindrome (489787984).

The spelling of 134641553 in words is "one hundred thirty-four million, six hundred forty-one thousand, five hundred fifty-three".