40362121 has 2 divisors, whose sum is σ = 40362122. Its totient is φ = 40362120.

The previous prime is 40362109. The next prime is 40362167. The reversal of 40362121 is 12126304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32319225 + 8042896 = 5685^2 + 2836^2 .

It is a cyclic number.

It is not a de Polignac number, because 40362121 - 2⁵ = 40362089 is a prime.

It is not a weakly prime, because it can be changed into another prime (40362181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20181060 + 20181061.

It is an arithmetic number, because the mean of its divisors is an integer number (20181061).

Almost surely, 2^40362121 is an apocalyptic number.

It is an amenable number.

40362121 is a deficient number, since it is larger than the sum of its proper divisors (1).

40362121 is an equidigital number, since it uses as much as digits as its factorization.

40362121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40362121 is about 6353.1189977837. The cubic root of 40362121 is about 343.0241209057.

Adding to 40362121 its reverse (12126304), we get a palindrome (52488425).

The spelling of 40362121 in words is "forty million, three hundred sixty-two thousand, one hundred twenty-one".