30499019 has 2 divisors, whose sum is σ = 30499020. Its totient is φ = 30499018.

The previous prime is 30499013. The next prime is 30499069. The reversal of 30499019 is 91099403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30499019 - 2⁸ = 30498763 is a prime.

It is a super-2 number, since 2×30499019² = 1860380319924722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30499019.

It is not a weakly prime, because it can be changed into another prime (30499013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15249509 + 15249510.

It is an arithmetic number, because the mean of its divisors is an integer number (15249510).

Almost surely, 2^30499019 is an apocalyptic number.

30499019 is a deficient number, since it is larger than the sum of its proper divisors (1).

30499019 is an equidigital number, since it uses as much as digits as its factorization.

30499019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 30499019 is about 5522.5916923126. The cubic root of 30499019 is about 312.4366386740.

The spelling of 30499019 in words is "thirty million, four hundred ninety-nine thousand, nineteen".