30501001 has 2 divisors, whose sum is σ = 30501002. Its totient is φ = 30501000.

The previous prime is 30500989. The next prime is 30501109. The reversal of 30501001 is 10010503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30250000 + 251001 = 5500^2 + 501^2 .

It is a cyclic number.

It is not a de Polignac number, because 30501001 - 2⁵ = 30500969 is a prime.

It is a super-2 number, since 2×30501001² = 1860622124004002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30501901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15250500 + 15250501.

It is an arithmetic number, because the mean of its divisors is an integer number (15250501).

Almost surely, 2^30501001 is an apocalyptic number.

It is an amenable number.

30501001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30501001 is an equidigital number, since it uses as much as digits as its factorization.

30501001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 30501001 is about 5522.7711341318. The cubic root of 30501001 is about 312.4434064982.

Adding to 30501001 its reverse (10010503), we get a palindrome (40511504).

The spelling of 30501001 in words is "thirty million, five hundred one thousand, one".