40032101 has 2 divisors, whose sum is σ = 40032102. Its totient is φ = 40032100.

The previous prime is 40032079. The next prime is 40032137. The reversal of 40032101 is 10123004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 13147876 = 5185^2 + 3626^2 .

It is a cyclic number.

It is not a de Polignac number, because 40032101 - 2⁶ = 40032037 is a prime.

It is a super-2 number, since 2×40032101² = 3205138220948402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40032301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20016050 + 20016051.

It is an arithmetic number, because the mean of its divisors is an integer number (20016051).

Almost surely, 2^40032101 is an apocalyptic number.

It is an amenable number.

40032101 is a deficient number, since it is larger than the sum of its proper divisors (1).

40032101 is an equidigital number, since it uses as much as digits as its factorization.

40032101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40032101 is about 6327.0926182568. The cubic root of 40032101 is about 342.0866514359.

Adding to 40032101 its reverse (10123004), we get a palindrome (50155105).

The spelling of 40032101 in words is "forty million, thirty-two thousand, one hundred one".