134472857 has 4 divisors (see below), whose sum is σ = 135148800. Its totient is φ = 133796916.

The previous prime is 134472829. The next prime is 134472869. The reversal of 134472857 is 758274431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 758274431 = 59 ⋅12852109.

It is a cyclic number.

It is not a de Polignac number, because 134472857 - 2¹⁴ = 134456473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134472817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337673 + ... + 338070.

It is an arithmetic number, because the mean of its divisors is an integer number (33787200).

Almost surely, 2^134472857 is an apocalyptic number.

It is an amenable number.

134472857 is a deficient number, since it is larger than the sum of its proper divisors (675943).

134472857 is an equidigital number, since it uses as much as digits as its factorization.

134472857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675942.

The product of its digits is 188160, while the sum is 41.

The square root of 134472857 is about 11596.2432278734. The cubic root of 134472857 is about 512.3242079617.

The spelling of 134472857 in words is "one hundred thirty-four million, four hundred seventy-two thousand, eight hundred fifty-seven".