134557831 has 4 divisors (see below), whose sum is σ = 137096712. Its totient is φ = 132018952.

The previous prime is 134557817. The next prime is 134557847. The reversal of 134557831 is 138755431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138755431 = 53 ⋅2618027.

It is a cyclic number.

It is not a de Polignac number, because 134557831 - 2⁵ = 134557799 is a prime.

It is a super-2 number, since 2×134557831² = 36211619766849122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134557811) 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, 1269361 + ... + 1269466.

It is an arithmetic number, because the mean of its divisors is an integer number (34274178).

Almost surely, 2^134557831 is an apocalyptic number.

134557831 is a deficient number, since it is larger than the sum of its proper divisors (2538881).

134557831 is an equidigital number, since it uses as much as digits as its factorization.

134557831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538880.

The product of its digits is 50400, while the sum is 37.

The square root of 134557831 is about 11599.9065082439. The cubic root of 134557831 is about 512.4320985591.

The spelling of 134557831 in words is "one hundred thirty-four million, five hundred fifty-seven thousand, eight hundred thirty-one".