136525851 has 64 divisors (see below), whose sum is σ = 255144960. Its totient is φ = 70087680.

The previous prime is 136525847. The next prime is 136525867. The reversal of 136525851 is 158525631.

It is a happy number.

136525851 is a `hidden beast` number, since 13 + 65 + 2 + 585 + 1 = 666.

It is not a de Polignac number, because 136525851 - 2² = 136525847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136525871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 201325 + ... + 202001.

It is an arithmetic number, because the mean of its divisors is an integer number (3986640).

Almost surely, 2^136525851 is an apocalyptic number.

136525851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136525851 is a deficient number, since it is larger than the sum of its proper divisors (118619109).

136525851 is a wasteful number, since it uses less digits than its factorization.

136525851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 795 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 136525851 is about 11684.4277138420. The cubic root of 136525851 is about 514.9182652202.

It can be divided in two parts, 13652 and 5851, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 136525851 in words is "one hundred thirty-six million, five hundred twenty-five thousand, eight hundred fifty-one".