136538049 has 4 divisors (see below), whose sum is σ = 182050736. Its totient is φ = 91025364.

The previous prime is 136538023. The next prime is 136538053. The reversal of 136538049 is 940835631.

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 not a de Polignac number, because 136538049 - 2⁹ = 136537537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136537998 and 136538016.

It is not an unprimeable number, because it can be changed into a prime (136538249) 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, 22756339 + ... + 22756344.

It is an arithmetic number, because the mean of its divisors is an integer number (45512684).

Almost surely, 2^136538049 is an apocalyptic number.

It is an amenable number.

136538049 is a deficient number, since it is larger than the sum of its proper divisors (45512687).

136538049 is an equidigital number, since it uses as much as digits as its factorization.

136538049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45512686.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 136538049 is about 11684.9496789674. The cubic root of 136538049 is about 514.9336000106.

The spelling of 136538049 in words is "one hundred thirty-six million, five hundred thirty-eight thousand, forty-nine".