134249623 has 4 divisors (see below), whose sum is σ = 138580288. Its totient is φ = 129918960.

The previous prime is 134249581. The next prime is 134249627. The reversal of 134249623 is 326942431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134249623 - 2⁹ = 134249111 is a prime.

It is a super-2 number, since 2×134249623² = 36045922551284258, 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 (134249627) 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, 2165286 + ... + 2165347.

It is an arithmetic number, because the mean of its divisors is an integer number (34645072).

Almost surely, 2^134249623 is an apocalyptic number.

134249623 is a deficient number, since it is larger than the sum of its proper divisors (4330665).

134249623 is an equidigital number, since it uses as much as digits as its factorization.

134249623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330664.

The product of its digits is 31104, while the sum is 34.

The square root of 134249623 is about 11586.6139574942. The cubic root of 134249623 is about 512.0405533776.

The spelling of 134249623 in words is "one hundred thirty-four million, two hundred forty-nine thousand, six hundred twenty-three".