30251461 has 2 divisors, whose sum is σ = 30251462. Its totient is φ = 30251460.

The previous prime is 30251453. The next prime is 30251513. The reversal of 30251461 is 16415203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 820836 = 5425^2 + 906^2 .

It is a cyclic number.

It is not a de Polignac number, because 30251461 - 2³ = 30251453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30251411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125730 + 15125731.

It is an arithmetic number, because the mean of its divisors is an integer number (15125731).

Almost surely, 2^30251461 is an apocalyptic number.

It is an amenable number.

30251461 is a deficient number, since it is larger than the sum of its proper divisors (1).

30251461 is an equidigital number, since it uses as much as digits as its factorization.

30251461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 30251461 is about 5500.1328165782. The cubic root of 30251461 is about 311.5890003824.

Adding to 30251461 its reverse (16415203), we get a palindrome (46666664).

The spelling of 30251461 in words is "thirty million, two hundred fifty-one thousand, four hundred sixty-one".