30140215 has 16 divisors (see below), whose sum is σ = 42670080. Its totient is φ = 20000160.

The previous prime is 30140191. The next prime is 30140219. The reversal of 30140215 is 51204103.

It is not a de Polignac number, because 30140215 - 2¹¹ = 30138167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12805 + ... + 14974.

It is an arithmetic number, because the mean of its divisors is an integer number (2666880).

Almost surely, 2^30140215 is an apocalyptic number.

30140215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30140215 is a deficient number, since it is larger than the sum of its proper divisors (12529865).

30140215 is a wasteful number, since it uses less digits than its factorization.

30140215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27822.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30140215 is about 5490.0104735784. The cubic root of 30140215 is about 311.2065879250.

Adding to 30140215 its reverse (51204103), we get a palindrome (81344318).

It can be divided in two parts, 30 and 140215, that multiplied together give a triangular number (4206450 = T₂₉₀₀).

The spelling of 30140215 in words is "thirty million, one hundred forty thousand, two hundred fifteen".