30126497 has 4 divisors (see below), whose sum is σ = 30620436. Its totient is φ = 29632560.

The previous prime is 30126491. The next prime is 30126511. The reversal of 30126497 is 79462103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79462103 = 7 ⋅11351729.

It can be written as a sum of positive squares in 2 ways, for example, as 9296401 + 20830096 = 3049^2 + 4564^2 .

It is a cyclic number.

It is not a de Polignac number, because 30126497 - 2⁸ = 30126241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30126491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246878 + ... + 246999.

It is an arithmetic number, because the mean of its divisors is an integer number (7655109).

Almost surely, 2^30126497 is an apocalyptic number.

It is an amenable number.

30126497 is a deficient number, since it is larger than the sum of its proper divisors (493939).

30126497 is an equidigital number, since it uses as much as digits as its factorization.

30126497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493938.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 30126497 is about 5488.7609712940. The cubic root of 30126497 is about 311.1593666314.

The spelling of 30126497 in words is "thirty million, one hundred twenty-six thousand, four hundred ninety-seven".