30149969 has 2 divisors, whose sum is σ = 30149970. Its totient is φ = 30149968.

The previous prime is 30149957. The next prime is 30149989. The reversal of 30149969 is 96994103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 2849344 = 5225^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 30149969 - 2¹⁶ = 30084433 is a prime.

It is a super-2 number, since 2×30149969² = 1818041261401922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30149989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15074984 + 15074985.

It is an arithmetic number, because the mean of its divisors is an integer number (15074985).

Almost surely, 2^30149969 is an apocalyptic number.

It is an amenable number.

30149969 is a deficient number, since it is larger than the sum of its proper divisors (1).

30149969 is an equidigital number, since it uses as much as digits as its factorization.

30149969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 30149969 is about 5490.8987424647. The cubic root of 30149969 is about 311.2401552775.

The spelling of 30149969 in words is "thirty million, one hundred forty-nine thousand, nine hundred sixty-nine".