36121155 has 32 divisors (see below), whose sum is σ = 68926464. Its totient is φ = 15793536.

The previous prime is 36121133. The next prime is 36121171. The reversal of 36121155 is 55112163.

It is not a de Polignac number, because 36121155 - 2¹⁰ = 36120131 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5064 + ... + 9893.

It is an arithmetic number, because the mean of its divisors is an integer number (2153952).

Almost surely, 2^36121155 is an apocalyptic number.

36121155 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

36121155 is a deficient number, since it is larger than the sum of its proper divisors (32805309).

36121155 is a wasteful number, since it uses less digits than its factorization.

36121155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995.

The product of its digits is 900, while the sum is 24.

The square root of 36121155 is about 6010.0877697418. The cubic root of 36121155 is about 330.5627221675.

The spelling of 36121155 in words is "thirty-six million, one hundred twenty-one thousand, one hundred fifty-five".