121004437 has 2 divisors, whose sum is σ = 121004438. Its totient is φ = 121004436.

The previous prime is 121004423. The next prime is 121004441. The reversal of 121004437 is 734400121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113018161 + 7986276 = 10631^2 + 2826^2 .

It is a cyclic number.

It is not a de Polignac number, because 121004437 - 2⁷ = 121004309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121004417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60502218 + 60502219.

It is an arithmetic number, because the mean of its divisors is an integer number (60502219).

Almost surely, 2^121004437 is an apocalyptic number.

It is an amenable number.

121004437 is a deficient number, since it is larger than the sum of its proper divisors (1).

121004437 is an equidigital number, since it uses as much as digits as its factorization.

121004437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 121004437 is about 11000.2016799693. The cubic root of 121004437 is about 494.6147899231.

Adding to 121004437 its reverse (734400121), we get a palindrome (855404558).

The spelling of 121004437 in words is "one hundred twenty-one million, four thousand, four hundred thirty-seven".