134020551 has 32 divisors (see below), whose sum is σ = 210327040. Its totient is φ = 74317824.

The previous prime is 134020541. The next prime is 134020559. The reversal of 134020551 is 155020431.

It is not a de Polignac number, because 134020551 - 2⁹ = 134020039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134020559) 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, 173895 + ... + 174663.

It is an arithmetic number, because the mean of its divisors is an integer number (6572720).

Almost surely, 2^134020551 is an apocalyptic number.

134020551 is a deficient number, since it is larger than the sum of its proper divisors (76306489).

134020551 is a wasteful number, since it uses less digits than its factorization.

134020551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 134020551 is about 11576.7245367591. The cubic root of 134020551 is about 511.7491536009.

Adding to 134020551 its reverse (155020431), we get a palindrome (289040982).

The spelling of 134020551 in words is "one hundred thirty-four million, twenty thousand, five hundred fifty-one".