30078001 has 4 divisors (see below), whose sum is σ = 30344292. Its totient is φ = 29811712.

The previous prime is 30077989. The next prime is 30078031. The reversal of 30078001 is 10087003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5832225 + 24245776 = 2415^2 + 4924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30078001 is a prime.

It is a super-2 number, since 2×30078001² = 1809372288312002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30078001.

It is not an unprimeable number, because it can be changed into a prime (30078031) 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 in 3 ways as a sum of consecutive naturals, for example, 132976 + ... + 133201.

It is an arithmetic number, because the mean of its divisors is an integer number (7586073).

Almost surely, 2^30078001 is an apocalyptic number.

It is an amenable number.

30078001 is a deficient number, since it is larger than the sum of its proper divisors (266291).

30078001 is a wasteful number, since it uses less digits than its factorization.

30078001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266290.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 30078001 is about 5484.3414372192. The cubic root of 30078001 is about 310.9923144746.

The spelling of 30078001 in words is "thirty million, seventy-eight thousand, one".