36121603 has 16 divisors (see below), whose sum is σ = 44861440. Its totient is φ = 28382400.

The previous prime is 36121543. The next prime is 36121609. The reversal of 36121603 is 30612163.

It is a cyclic number.

It is not a de Polignac number, because 36121603 - 2²¹ = 34024451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36121609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258 + ... + 8503.

It is an arithmetic number, because the mean of its divisors is an integer number (2803840).

Almost surely, 2^36121603 is an apocalyptic number.

36121603 is a deficient number, since it is larger than the sum of its proper divisors (8739837).

36121603 is a wasteful number, since it uses less digits than its factorization.

36121603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8818.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 36121603 is about 6010.1250402966. The cubic root of 36121603 is about 330.5640887858.

Adding to 36121603 its reverse (30612163), we get a palindrome (66733766).

It can be divided in two parts, 3612160 and 3, that added together give a palindrome (3612163).

The spelling of 36121603 in words is "thirty-six million, one hundred twenty-one thousand, six hundred three".