136993448 has 16 divisors (see below), whose sum is σ = 265720500. Its totient is φ = 66134656.

The previous prime is 136993421. The next prime is 136993453. The reversal of 136993448 is 844399631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136936804 + 56644 = 11702^2 + 238^2 .

It is an unprimeable number.

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, 295013 + ... + 295476.

Almost surely, 2^136993448 is an apocalyptic number.

It is an amenable number.

136993448 is a deficient number, since it is larger than the sum of its proper divisors (128727052).

136993448 is a wasteful number, since it uses less digits than its factorization.

136993448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590524 (or 590520 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 136993448 is about 11704.4200198045. The cubic root of 136993448 is about 515.5054553008.

The spelling of 136993448 in words is "one hundred thirty-six million, nine hundred ninety-three thousand, four hundred forty-eight".