136161029 has 4 divisors (see below), whose sum is σ = 137509260. Its totient is φ = 134812800.

The previous prime is 136161013. The next prime is 136161059. The reversal of 136161029 is 920161631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129390625 + 6770404 = 11375^2 + 2602^2 .

It is a cyclic number.

It is not a de Polignac number, because 136161029 - 2⁴ = 136161013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136160992 and 136161010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136161059) 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, 673964 + ... + 674165.

It is an arithmetic number, because the mean of its divisors is an integer number (34377315).

Almost surely, 2^136161029 is an apocalyptic number.

It is an amenable number.

136161029 is a deficient number, since it is larger than the sum of its proper divisors (1348231).

136161029 is a wasteful number, since it uses less digits than its factorization.

136161029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348230.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 136161029 is about 11668.8058086507. The cubic root of 136161029 is about 514.4592042069.

The spelling of 136161029 in words is "one hundred thirty-six million, one hundred sixty-one thousand, twenty-nine".