136649458 has 16 divisors (see below), whose sum is σ = 223992864. Its totient is φ = 62006560.

The previous prime is 136649453. The next prime is 136649467. The reversal of 136649458 is 854946631.

It is not an unprimeable number, because it can be changed into a prime (136649453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8541 + ... + 18607.

It is an arithmetic number, because the mean of its divisors is an integer number (13999554).

Almost surely, 2^136649458 is an apocalyptic number.

136649458 is a deficient number, since it is larger than the sum of its proper divisors (87343406).

136649458 is a wasteful number, since it uses less digits than its factorization.

136649458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10697.

The product of its digits is 622080, while the sum is 46.

The square root of 136649458 is about 11689.7159075830. The cubic root of 136649458 is about 515.0736162713.

The spelling of 136649458 in words is "one hundred thirty-six million, six hundred forty-nine thousand, four hundred fifty-eight".