121063541 has 2 divisors, whose sum is σ = 121063542. Its totient is φ = 121063540.

The previous prime is 121063531. The next prime is 121063561. The reversal of 121063541 is 145360121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114041041 + 7022500 = 10679^2 + 2650^2 .

It is an emirp because it is prime and its reverse (145360121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121063541 - 2¹⁸ = 120801397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121063531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60531770 + 60531771.

It is an arithmetic number, because the mean of its divisors is an integer number (60531771).

Almost surely, 2^121063541 is an apocalyptic number.

It is an amenable number.

121063541 is a deficient number, since it is larger than the sum of its proper divisors (1).

121063541 is an equidigital number, since it uses as much as digits as its factorization.

121063541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 121063541 is about 11002.8878481969. The cubic root of 121063541 is about 494.6953075055.

The spelling of 121063541 in words is "one hundred twenty-one million, sixty-three thousand, five hundred forty-one".