30015965 has 32 divisors (see below), whose sum is σ = 44354304. Its totient is φ = 19031040.

The previous prime is 30015949. The next prime is 30016001. The reversal of 30015965 is 56951003.

It is not a de Polignac number, because 30015965 - 2⁴ = 30015949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35882 + ... + 36708.

It is an arithmetic number, because the mean of its divisors is an integer number (1386072).

Almost surely, 2^30015965 is an apocalyptic number.

30015965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30015965 is a deficient number, since it is larger than the sum of its proper divisors (14338339).

30015965 is a wasteful number, since it uses less digits than its factorization.

30015965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 30015965 is about 5478.6827796469. The cubic root of 30015965 is about 310.7783596730.

Adding to 30015965 its reverse (56951003), we get a palindrome (86966968).

The spelling of 30015965 in words is "thirty million, fifteen thousand, nine hundred sixty-five".