120961549 has 2 divisors, whose sum is σ = 120961550. Its totient is φ = 120961548.

The previous prime is 120961541. The next prime is 120961559. The reversal of 120961549 is 945169021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88266025 + 32695524 = 9395^2 + 5718^2 .

It is an emirp because it is prime and its reverse (945169021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120961549 - 2³ = 120961541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120961541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60480774 + 60480775.

It is an arithmetic number, because the mean of its divisors is an integer number (60480775).

Almost surely, 2^120961549 is an apocalyptic number.

It is an amenable number.

120961549 is a deficient number, since it is larger than the sum of its proper divisors (1).

120961549 is an equidigital number, since it uses as much as digits as its factorization.

120961549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 120961549 is about 10998.2520884002. The cubic root of 120961549 is about 494.5563470364.

The spelling of 120961549 in words is "one hundred twenty million, nine hundred sixty-one thousand, five hundred forty-nine".