134157557 has 6 divisors (see below), whose sum is σ = 142513698. Its totient is φ = 126265664.

The previous prime is 134157511. The next prime is 134157559. The reversal of 134157557 is 755751431.

It can be written as a sum of positive squares in 3 ways, for example, as 26122321 + 108035236 = 5111^2 + 10394^2 .

It is not a de Polignac number, because 134157557 - 2²⁶ = 67048693 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 134157557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134157559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231818 + ... + 232395.

It is an arithmetic number, because the mean of its divisors is an integer number (23752283).

Almost surely, 2^134157557 is an apocalyptic number.

134157557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

134157557 is a deficient number, since it is larger than the sum of its proper divisors (8356141).

134157557 is an equidigital number, since it uses as much as digits as its factorization.

134157557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464247 (or 464230 counting only the distinct ones).

The product of its digits is 73500, while the sum is 38.

The square root of 134157557 is about 11582.6403293895. The cubic root of 134157557 is about 511.9234771805.

The spelling of 134157557 in words is "one hundred thirty-four million, one hundred fifty-seven thousand, five hundred fifty-seven".