260121541 has 2 divisors, whose sum is σ = 260121542. Its totient is φ = 260121540.

The previous prime is 260121529. The next prime is 260121551. The reversal of 260121541 is 145121062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185368225 + 74753316 = 13615^2 + 8646^2 .

It is a cyclic number.

It is not a de Polignac number, because 260121541 - 2²³ = 251732933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260121551) 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, 130060770 + 130060771.

It is an arithmetic number, because the mean of its divisors is an integer number (130060771).

Almost surely, 2^260121541 is an apocalyptic number.

It is an amenable number.

260121541 is a deficient number, since it is larger than the sum of its proper divisors (1).

260121541 is an equidigital number, since it uses as much as digits as its factorization.

260121541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 260121541 is about 16128.2838826702. The cubic root of 260121541 is about 638.3498677206.

It can be divided in two parts, 2601 and 21541, that added together give a palindrome (24142).

The spelling of 260121541 in words is "two hundred sixty million, one hundred twenty-one thousand, five hundred forty-one".