121162549 has 2 divisors, whose sum is σ = 121162550. Its totient is φ = 121162548.

The previous prime is 121162541. The next prime is 121162567. The reversal of 121162549 is 945261121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98903025 + 22259524 = 9945^2 + 4718^2 .

It is a cyclic number.

It is not a de Polignac number, because 121162549 - 2³ = 121162541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121162549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121162541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60581274 + 60581275.

It is an arithmetic number, because the mean of its divisors is an integer number (60581275).

Almost surely, 2^121162549 is an apocalyptic number.

It is an amenable number.

121162549 is a deficient number, since it is larger than the sum of its proper divisors (1).

121162549 is an equidigital number, since it uses as much as digits as its factorization.

121162549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 121162549 is about 11007.3861111528. The cubic root of 121162549 is about 494.8301277460.

The spelling of 121162549 in words is "one hundred twenty-one million, one hundred sixty-two thousand, five hundred forty-nine".