36821137 has 4 divisors (see below), whose sum is σ = 38422080. Its totient is φ = 35220196.

The previous prime is 36821117. The next prime is 36821153. The reversal of 36821137 is 73112863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73112863 = 359 ⋅203657.

It is a cyclic number.

It is not a de Polignac number, because 36821137 - 2¹¹ = 36819089 is a prime.

It is a super-2 number, since 2×36821137² = 2711592259945538, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36821099 and 36821108.

It is not an unprimeable number, because it can be changed into a prime (36821117) 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 3 ways as a sum of consecutive naturals, for example, 800437 + ... + 800482.

It is an arithmetic number, because the mean of its divisors is an integer number (9605520).

Almost surely, 2^36821137 is an apocalyptic number.

It is an amenable number.

36821137 is a deficient number, since it is larger than the sum of its proper divisors (1600943).

36821137 is a wasteful number, since it uses less digits than its factorization.

36821137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600942.

The product of its digits is 6048, while the sum is 31.

The square root of 36821137 is about 6068.0422707822. The cubic root of 36821137 is about 332.6843705842.

The spelling of 36821137 in words is "thirty-six million, eight hundred twenty-one thousand, one hundred thirty-seven".