134897183449 has 4 divisors (see below), whose sum is σ = 154168209664. Its totient is φ = 115626157236.

The previous prime is 134897183437. The next prime is 134897183507. The reversal of 134897183449 is 944381798431.

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.

It is a cyclic number.

It is not a de Polignac number, because 134897183449 - 2¹⁷ = 134897052377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134897183149) 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, 9635513097 + ... + 9635513110.

It is an arithmetic number, because the mean of its divisors is an integer number (38542052416).

Almost surely, 2^134897183449 is an apocalyptic number.

It is an amenable number.

134897183449 is a deficient number, since it is larger than the sum of its proper divisors (19271026215).

134897183449 is an equidigital number, since it uses as much as digits as its factorization.

134897183449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19271026214.

The product of its digits is 20901888, while the sum is 61.

The spelling of 134897183449 in words is "one hundred thirty-four billion, eight hundred ninety-seven million, one hundred eighty-three thousand, four hundred forty-nine".