1207120169 has 2 divisors, whose sum is σ = 1207120170. Its totient is φ = 1207120168.

The previous prime is 1207120121. The next prime is 1207120171. The reversal of 1207120169 is 9610217021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199721769 + 7398400 = 34637^2 + 2720^2 .

It is an emirp because it is prime and its reverse (9610217021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1207120169 is a prime.

It is a super-2 number, since 2×1207120169² = 2914278204813177122, which contains 22 as substring.

Together with 1207120171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1207120469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603560084 + 603560085.

It is an arithmetic number, because the mean of its divisors is an integer number (603560085).

Almost surely, 2^1207120169 is an apocalyptic number.

It is an amenable number.

1207120169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1207120169 is an equidigital number, since it uses as much as digits as its factorization.

1207120169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1207120169 is about 34743.6349422452. The cubic root of 1207120169 is about 1064.7561783229.

The spelling of 1207120169 in words is "one billion, two hundred seven million, one hundred twenty thousand, one hundred sixty-nine".