121487741 has 2 divisors, whose sum is σ = 121487742. Its totient is φ = 121487740.

The previous prime is 121487719. The next prime is 121487801. The reversal of 121487741 is 147784121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107723641 + 13764100 = 10379^2 + 3710^2 .

It is a cyclic number.

It is not a de Polignac number, because 121487741 - 2⁶ = 121487677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121487711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60743870 + 60743871.

It is an arithmetic number, because the mean of its divisors is an integer number (60743871).

Almost surely, 2^121487741 is an apocalyptic number.

It is an amenable number.

121487741 is a deficient number, since it is larger than the sum of its proper divisors (1).

121487741 is an equidigital number, since it uses as much as digits as its factorization.

121487741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544, while the sum is 35.

The square root of 121487741 is about 11022.1477489644. The cubic root of 121487741 is about 495.2724290265.

The spelling of 121487741 in words is "one hundred twenty-one million, four hundred eighty-seven thousand, seven hundred forty-one".