136010261 has 8 divisors (see below), whose sum is σ = 144504120. Its totient is φ = 127770048.

The previous prime is 136010257. The next prime is 136010263. The reversal of 136010261 is 162010631.

It can be written as a sum of positive squares in 4 ways, for example, as 40576900 + 95433361 = 6370^2 + 9769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136010261 - 2² = 136010257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136010263) 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, 62306 + ... + 64451.

It is an arithmetic number, because the mean of its divisors is an integer number (18063015).

Almost surely, 2^136010261 is an apocalyptic number.

It is an amenable number.

136010261 is a deficient number, since it is larger than the sum of its proper divisors (8493859).

136010261 is a wasteful number, since it uses less digits than its factorization.

136010261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126823.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 136010261 is about 11662.3437181383. The cubic root of 136010261 is about 514.2692511007.

Adding to 136010261 its reverse (162010631), we get a palindrome (298020892).

The spelling of 136010261 in words is "one hundred thirty-six million, ten thousand, two hundred sixty-one".