30494357 has 2 divisors, whose sum is σ = 30494358. Its totient is φ = 30494356.

The previous prime is 30494333. The next prime is 30494371. The reversal of 30494357 is 75349403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30096196 + 398161 = 5486^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 30494357 - 2²⁰ = 29445781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30494377) 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 as a sum of consecutive naturals, namely, 15247178 + 15247179.

It is an arithmetic number, because the mean of its divisors is an integer number (15247179).

Almost surely, 2^30494357 is an apocalyptic number.

It is an amenable number.

30494357 is a deficient number, since it is larger than the sum of its proper divisors (1).

30494357 is an equidigital number, since it uses as much as digits as its factorization.

30494357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 30494357 is about 5522.1695917456. The cubic root of 30494357 is about 312.4207184479.

The spelling of 30494357 in words is "thirty million, four hundred ninety-four thousand, three hundred fifty-seven".