30520097 has 2 divisors, whose sum is σ = 30520098. Its totient is φ = 30520096.

The previous prime is 30520073. The next prime is 30520111. The reversal of 30520097 is 79002503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 8014561 = 4744^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 30520097 - 2¹² = 30516001 is a prime.

It is a Chen prime.

It is equal to p_1888100 and since 30520097 and 1888100 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30520697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260048 + 15260049.

It is an arithmetic number, because the mean of its divisors is an integer number (15260049).

Almost surely, 2^30520097 is an apocalyptic number.

It is an amenable number.

30520097 is a deficient number, since it is larger than the sum of its proper divisors (1).

30520097 is an equidigital number, since it uses as much as digits as its factorization.

30520097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 30520097 is about 5524.4997058557. The cubic root of 30520097 is about 312.5085975235.

It can be divided in two parts, 305 and 20097, that added together give a palindrome (20402).

The spelling of 30520097 in words is "thirty million, five hundred twenty thousand, ninety-seven".