40270121 has 2 divisors, whose sum is σ = 40270122. Its totient is φ = 40270120.

The previous prime is 40270091. The next prime is 40270123. The reversal of 40270121 is 12107204.

40270121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 3534400 = 6061^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 40270121 - 2⁶ = 40270057 is a prime.

Together with 40270123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40270121.

It is not a weakly prime, because it can be changed into another prime (40270123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20135060 + 20135061.

It is an arithmetic number, because the mean of its divisors is an integer number (20135061).

Almost surely, 2^40270121 is an apocalyptic number.

It is an amenable number.

40270121 is a deficient number, since it is larger than the sum of its proper divisors (1).

40270121 is an equidigital number, since it uses as much as digits as its factorization.

40270121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 40270121 is about 6345.8743290425. The cubic root of 40270121 is about 342.7632969259.

Adding to 40270121 its reverse (12107204), we get a palindrome (52377325).

The spelling of 40270121 in words is "forty million, two hundred seventy thousand, one hundred twenty-one".