30494137 has 2 divisors, whose sum is σ = 30494138. Its totient is φ = 30494136.

The previous prime is 30494131. The next prime is 30494143. The reversal of 30494137 is 73149403.

It is a balanced prime because it is at equal distance from previous prime (30494131) and next prime (30494143).

It can be written as a sum of positive squares in only one way, i.e., 26429881 + 4064256 = 5141^2 + 2016^2 .

It is a cyclic number.

It is not a de Polignac number, because 30494137 - 2³ = 30494129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30494099 and 30494108.

It is not a weakly prime, because it can be changed into another prime (30494131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15247068 + 15247069.

It is an arithmetic number, because the mean of its divisors is an integer number (15247069).

Almost surely, 2^30494137 is an apocalyptic number.

It is an amenable number.

30494137 is a deficient number, since it is larger than the sum of its proper divisors (1).

30494137 is an equidigital number, since it uses as much as digits as its factorization.

30494137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 30494137 is about 5522.1496720027. The cubic root of 30494137 is about 312.4199671316.

The spelling of 30494137 in words is "thirty million, four hundred ninety-four thousand, one hundred thirty-seven".