36129251 has 4 divisors (see below), whose sum is σ = 37700112. Its totient is φ = 34558392.

The previous prime is 36129221. The next prime is 36129257. The reversal of 36129251 is 15292163.

36129251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 36129251 - 2⁶ = 36129187 is a prime.

It is a pancake number, because a pancake can be divided into 36129251 parts by 8500 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36129257) 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 3 ways as a sum of consecutive naturals, for example, 785396 + ... + 785441.

It is an arithmetic number, because the mean of its divisors is an integer number (9425028).

Almost surely, 2^36129251 is an apocalyptic number.

36129251 is a deficient number, since it is larger than the sum of its proper divisors (1570861).

36129251 is a wasteful number, since it uses less digits than its factorization.

36129251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570860.

The product of its digits is 3240, while the sum is 29.

The square root of 36129251 is about 6010.7612662624. The cubic root of 36129251 is about 330.5874171686.

The spelling of 36129251 in words is "thirty-six million, one hundred twenty-nine thousand, two hundred fifty-one".