136207513 has 8 divisors (see below), whose sum is σ = 146788488. Its totient is φ = 125641344.

The previous prime is 136207507. The next prime is 136207517. The reversal of 136207513 is 315702631.

136207513 = 8252² + 8253².

It can be written as a sum of positive squares in 4 ways, for example, as 68095504 + 68112009 = 8252^2 + 8253^2 .

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 136207513 - 2⁵ = 136207481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136207517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22131 + ... + 27607.

It is an arithmetic number, because the mean of its divisors is an integer number (18348561).

Almost surely, 2^136207513 is an apocalyptic number.

136207513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136207513 is the 8253-rd centered square number.

It is an amenable number.

136207513 is a deficient number, since it is larger than the sum of its proper divisors (10580975).

136207513 is a wasteful number, since it uses less digits than its factorization.

136207513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 136207513 is about 11670.7974449050. The cubic root of 136207513 is about 514.5177412714.

It can be divided in two parts, 13 and 6207513, that added together give a triangular number (6207526 = T₃₅₂₃).

The spelling of 136207513 in words is "one hundred thirty-six million, two hundred seven thousand, five hundred thirteen".