30130973 has 2 divisors, whose sum is σ = 30130974. Its totient is φ = 30130972.

The previous prime is 30130963. The next prime is 30130981. The reversal of 30130973 is 37903103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25623844 + 4507129 = 5062^2 + 2123^2 .

It is a cyclic number.

It is not a de Polignac number, because 30130973 - 2⁴ = 30130957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30130963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065486 + 15065487.

It is an arithmetic number, because the mean of its divisors is an integer number (15065487).

Almost surely, 2^30130973 is an apocalyptic number.

It is an amenable number.

30130973 is a deficient number, since it is larger than the sum of its proper divisors (1).

30130973 is an equidigital number, since it uses as much as digits as its factorization.

30130973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 30130973 is about 5489.1686984461. The cubic root of 30130973 is about 311.1747758835.

The spelling of 30130973 in words is "thirty million, one hundred thirty thousand, nine hundred seventy-three".