134861243 has 8 divisors (see below), whose sum is σ = 147504240. Its totient is φ = 122282080.

The previous prime is 134861227. The next prime is 134861269. The reversal of 134861243 is 342168431.

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

It is a cyclic number.

It is not a de Polignac number, because 134861243 - 2⁴ = 134861227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134861743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11480 + ... + 20037.

It is an arithmetic number, because the mean of its divisors is an integer number (18438030).

Almost surely, 2^134861243 is an apocalyptic number.

134861243 is a deficient number, since it is larger than the sum of its proper divisors (12642997).

134861243 is a wasteful number, since it uses less digits than its factorization.

134861243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31917.

The product of its digits is 13824, while the sum is 32.

The square root of 134861243 is about 11612.9773529444. The cubic root of 134861243 is about 512.8169673583.

The spelling of 134861243 in words is "one hundred thirty-four million, eight hundred sixty-one thousand, two hundred forty-three".