1230387169 has 6 divisors (see below), whose sum is σ = 1352409170. Its totient is φ = 1118533680.

The previous prime is 1230387149. The next prime is 1230387173. The reversal of 1230387169 is 9617830321.

It can be written as a sum of positive squares in only one way, i.e., 789891025 + 440496144 = 28105^2 + 20988^2 .

It is not a de Polignac number, because 1230387169 - 2¹³ = 1230378977 is a prime.

It is a super-2 number, since 2×1230387169² = 3027705171279669122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230387149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5084124 + ... + 5084365.

Almost surely, 2^1230387169 is an apocalyptic number.

It is an amenable number.

1230387169 is a deficient number, since it is larger than the sum of its proper divisors (122022001).

1230387169 is a wasteful number, since it uses less digits than its factorization.

1230387169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10168511 (or 10168500 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1230387169 is about 35076.8751316305. The cubic root of 1230387169 is about 1071.5536776385.

The spelling of 1230387169 in words is "one billion, two hundred thirty million, three hundred eighty-seven thousand, one hundred sixty-nine".