136513161 has 8 divisors (see below), whose sum is σ = 202241760. Its totient is φ = 91008756.

The previous prime is 136513159. The next prime is 136513163. The reversal of 136513161 is 161315631.

136513161 is a `hidden beast` number, since 1 + 3 + 651 + 3 + 1 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (136513159) and next prime (136513163).

It is not a de Polignac number, because 136513161 - 2¹ = 136513159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5056043 = 136513161 / (1 + 3 + 6 + 5 + 1 + 3 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (136513163) 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, 2527995 + ... + 2528048.

It is an arithmetic number, because the mean of its divisors is an integer number (25280220).

Almost surely, 2^136513161 is an apocalyptic number.

It is an amenable number.

136513161 is a deficient number, since it is larger than the sum of its proper divisors (65728599).

136513161 is an equidigital number, since it uses as much as digits as its factorization.

136513161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056052 (or 5056046 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 136513161 is about 11683.8846707762. The cubic root of 136513161 is about 514.9023109395.

Adding to 136513161 its reverse (161315631), we get a palindrome (297828792).

The spelling of 136513161 in words is "one hundred thirty-six million, five hundred thirteen thousand, one hundred sixty-one".