136458649 has 4 divisors (see below), whose sum is σ = 136485760. Its totient is φ = 136431540.

The previous prime is 136458629. The next prime is 136458653. The reversal of 136458649 is 946854631.

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 136458649 - 2¹¹ = 136456601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136458599 and 136458608.

It is not an unprimeable number, because it can be changed into a prime (136458629) 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, 3537 + ... + 16894.

It is an arithmetic number, because the mean of its divisors is an integer number (34121440).

Almost surely, 2^136458649 is an apocalyptic number.

It is an amenable number.

136458649 is a deficient number, since it is larger than the sum of its proper divisors (27111).

136458649 is an equidigital number, since it uses as much as digits as its factorization.

136458649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27110.

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

The square root of 136458649 is about 11681.5516520709. The cubic root of 136458649 is about 514.8337654321.

The spelling of 136458649 in words is "one hundred thirty-six million, four hundred fifty-eight thousand, six hundred forty-nine".