30031669 has 2 divisors, whose sum is σ = 30031670. Its totient is φ = 30031668.

The previous prime is 30031667. The next prime is 30031681. The reversal of 30031669 is 96613003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17514225 + 12517444 = 4185^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 30031669 - 2¹ = 30031667 is a prime.

It is a super-2 number, since 2×30031669² = 1803802285851122, which contains 22 as substring.

Together with 30031667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30031667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015834 + 15015835.

It is an arithmetic number, because the mean of its divisors is an integer number (15015835).

Almost surely, 2^30031669 is an apocalyptic number.

It is an amenable number.

30031669 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031669 is an equidigital number, since it uses as much as digits as its factorization.

30031669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 30031669 is about 5480.1157834484. The cubic root of 30031669 is about 310.8325487517.

The spelling of 30031669 in words is "thirty million, thirty-one thousand, six hundred sixty-nine".