134243247 has 8 divisors (see below), whose sum is σ = 180836656. Its totient is φ = 88572672.

The previous prime is 134243243. The next prime is 134243251. The reversal of 134243247 is 742342431.

It is an interprime number because it is at equal distance from previous prime (134243243) and next prime (134243251).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134243247 - 2² = 134243243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134243243) 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 7 ways as a sum of consecutive naturals, for example, 230368 + ... + 230949.

It is an arithmetic number, because the mean of its divisors is an integer number (22604582).

Almost surely, 2^134243247 is an apocalyptic number.

134243247 is a deficient number, since it is larger than the sum of its proper divisors (46593409).

134243247 is an equidigital number, since it uses as much as digits as its factorization.

134243247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461417.

The product of its digits is 16128, while the sum is 30.

The square root of 134243247 is about 11586.3388091321. The cubic root of 134243247 is about 512.0324470302.

Adding to 134243247 its reverse (742342431), we get a palindrome (876585678).

The spelling of 134243247 in words is "one hundred thirty-four million, two hundred forty-three thousand, two hundred forty-seven".