134011557 has 8 divisors (see below), whose sum is σ = 198535680. Its totient is φ = 89341020.

The previous prime is 134011531. The next prime is 134011567. The reversal of 134011557 is 755110431.

It is not a de Polignac number, because 134011557 - 2⁸ = 134011301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4963391 = 134011557 / (1 + 3 + 4 + 0 + 1 + 1 + 5 + 5 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 134011557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134011567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481669 + ... + 2481722.

It is an arithmetic number, because the mean of its divisors is an integer number (24816960).

Almost surely, 2^134011557 is an apocalyptic number.

It is an amenable number.

134011557 is a deficient number, since it is larger than the sum of its proper divisors (64524123).

134011557 is an equidigital number, since it uses as much as digits as its factorization.

134011557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963400 (or 4963394 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 134011557 is about 11576.3360783972. The cubic root of 134011557 is about 511.7377056679.

Adding to 134011557 its reverse (755110431), we get a palindrome (889121988).

The spelling of 134011557 in words is "one hundred thirty-four million, eleven thousand, five hundred fifty-seven".