36031021 has 16 divisors (see below), whose sum is σ = 41448960. Its totient is φ = 31066560.

The previous prime is 36031019. The next prime is 36031057. The reversal of 36031021 is 12013063.

It is a cyclic number.

It is not a de Polignac number, because 36031021 - 2¹ = 36031019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36030986 and 36031004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36031421) 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, 10146 + ... + 13228.

It is an arithmetic number, because the mean of its divisors is an integer number (2590560).

Almost surely, 2^36031021 is an apocalyptic number.

36031021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36031021 is a deficient number, since it is larger than the sum of its proper divisors (5417939).

36031021 is a wasteful number, since it uses less digits than its factorization.

36031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 36031021 is about 6002.5845266852. The cubic root of 36031021 is about 330.2875394065.

Adding to 36031021 its reverse (12013063), we get a palindrome (48044084).

It can be divided in two parts, 3603 and 1021, that added together give a square (4624 = 68²).

The spelling of 36031021 in words is "thirty-six million, thirty-one thousand, twenty-one".