30125801 has 2 divisors, whose sum is σ = 30125802. Its totient is φ = 30125800.

The previous prime is 30125789. The next prime is 30125839. The reversal of 30125801 is 10852103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21576025 + 8549776 = 4645^2 + 2924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30125801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30128801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15062900 + 15062901.

It is an arithmetic number, because the mean of its divisors is an integer number (15062901).

Almost surely, 2^30125801 is an apocalyptic number.

It is an amenable number.

30125801 is a deficient number, since it is larger than the sum of its proper divisors (1).

30125801 is an equidigital number, since it uses as much as digits as its factorization.

30125801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 30125801 is about 5488.6975686405. The cubic root of 30125801 is about 311.1569704176.

Adding to 30125801 its reverse (10852103), we get a palindrome (40977904).

The spelling of 30125801 in words is "thirty million, one hundred twenty-five thousand, eight hundred one".