134331551 has 4 divisors (see below), whose sum is σ = 134660400. Its totient is φ = 134002704.

The previous prime is 134331529. The next prime is 134331581. The reversal of 134331551 is 155133431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155133431 = 61 ⋅2543171.

It is a cyclic number.

It is not a de Polignac number, because 134331551 - 2⁶ = 134331487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134331551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134331511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163811 + ... + 164628.

It is an arithmetic number, because the mean of its divisors is an integer number (33665100).

Almost surely, 2^134331551 is an apocalyptic number.

134331551 is a deficient number, since it is larger than the sum of its proper divisors (328849).

134331551 is an equidigital number, since it uses as much as digits as its factorization.

134331551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328848.

The product of its digits is 2700, while the sum is 26.

The square root of 134331551 is about 11590.1488773872. The cubic root of 134331551 is about 512.1446925346.

Adding to 134331551 its reverse (155133431), we get a palindrome (289464982).

The spelling of 134331551 in words is "one hundred thirty-four million, three hundred thirty-one thousand, five hundred fifty-one".