30147291397 has 2 divisors, whose sum is σ = 30147291398. Its totient is φ = 30147291396.

The previous prime is 30147291373. The next prime is 30147291403. The reversal of 30147291397 is 79319274103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28046535841 + 2100755556 = 167471^2 + 45834^2 .

It is a cyclic number.

It is not a de Polignac number, because 30147291397 - 2⁷ = 30147291269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30147291337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15073645698 + 15073645699.

It is an arithmetic number, because the mean of its divisors is an integer number (15073645699).

Almost surely, 2^30147291397 is an apocalyptic number.

It is an amenable number.

30147291397 is a deficient number, since it is larger than the sum of its proper divisors (1).

30147291397 is an equidigital number, since it uses as much as digits as its factorization.

30147291397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 46.

The spelling of 30147291397 in words is "thirty billion, one hundred forty-seven million, two hundred ninety-one thousand, three hundred ninety-seven".