136674449 has 4 divisors (see below), whose sum is σ = 139582464. Its totient is φ = 133766436.

The previous prime is 136674427. The next prime is 136674457. The reversal of 136674449 is 944476631.

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: 944476631 = 7 ⋅134925233.

It is a cyclic number.

It is not a de Polignac number, because 136674449 - 2¹² = 136670353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136674949) 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, 1453937 + ... + 1454030.

It is an arithmetic number, because the mean of its divisors is an integer number (34895616).

Almost surely, 2^136674449 is an apocalyptic number.

It is an amenable number.

136674449 is a deficient number, since it is larger than the sum of its proper divisors (2908015).

136674449 is an equidigital number, since it uses as much as digits as its factorization.

136674449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908014.

The product of its digits is 435456, while the sum is 44.

The square root of 136674449 is about 11690.7847897393. The cubic root of 136674449 is about 515.1050139324.

The spelling of 136674449 in words is "one hundred thirty-six million, six hundred seventy-four thousand, four hundred forty-nine".