36129554 has 4 divisors (see below), whose sum is σ = 54194334. Its totient is φ = 18064776.

The previous prime is 36129553. The next prime is 36129571. The reversal of 36129554 is 45592163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45592163 = 373 ⋅122231.

It can be written as a sum of positive squares in only one way, i.e., 33953929 + 2175625 = 5827^2 + 1475^2 .

It is not an unprimeable number, because it can be changed into a prime (36129551) 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 as a sum of consecutive naturals, namely, 9032387 + ... + 9032390.

Almost surely, 2^36129554 is an apocalyptic number.

36129554 is a deficient number, since it is larger than the sum of its proper divisors (18064780).

36129554 is a wasteful number, since it uses less digits than its factorization.

36129554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18064779.

The product of its digits is 32400, while the sum is 35.

The square root of 36129554 is about 6010.7864710036. The cubic root of 36129554 is about 330.5883413293.

The spelling of 36129554 in words is "thirty-six million, one hundred twenty-nine thousand, five hundred fifty-four".