134268649 has 4 divisors (see below), whose sum is σ = 141335440. Its totient is φ = 127201860.

The previous prime is 134268643. The next prime is 134268653. The reversal of 134268649 is 946862431.

It is a happy number.

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: 946862431 = 701 ⋅1350731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134268649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134268643) 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, 3533367 + ... + 3533404.

It is an arithmetic number, because the mean of its divisors is an integer number (35333860).

Almost surely, 2^134268649 is an apocalyptic number.

134268649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

134268649 is a deficient number, since it is larger than the sum of its proper divisors (7066791).

134268649 is an equidigital number, since it uses as much as digits as its factorization.

134268649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7066790.

The product of its digits is 248832, while the sum is 43.

The square root of 134268649 is about 11587.4349620613. The cubic root of 134268649 is about 512.0647412131.

The spelling of 134268649 in words is "one hundred thirty-four million, two hundred sixty-eight thousand, six hundred forty-nine".