53700121 has 2 divisors, whose sum is σ = 53700122. Its totient is φ = 53700120.

The previous prime is 53700113. The next prime is 53700139. The reversal of 53700121 is 12100735.

53700121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52345225 + 1354896 = 7235^2 + 1164^2 .

It is a cyclic number.

It is not a de Polignac number, because 53700121 - 2³ = 53700113 is a prime.

It is not a weakly prime, because it can be changed into another prime (53700151) 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, 26850060 + 26850061.

It is an arithmetic number, because the mean of its divisors is an integer number (26850061).

Almost surely, 2^53700121 is an apocalyptic number.

It is an amenable number.

53700121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53700121 is an equidigital number, since it uses as much as digits as its factorization.

53700121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 53700121 is about 7328.0366401922. The cubic root of 53700121 is about 377.2753419649.

Adding to 53700121 its reverse (12100735), we get a palindrome (65800856).

The spelling of 53700121 in words is "fifty-three million, seven hundred thousand, one hundred twenty-one".