215140002 has 64 divisors (see below), whose sum is σ = 564710400. Its totient is φ = 52937280.

The previous prime is 215139973. The next prime is 215140007. The reversal of 215140002 is 200041512.

It is not an unprimeable number, because it can be changed into a prime (215140007) 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 31 ways as a sum of consecutive naturals, for example, 3477 + ... + 21032.

It is an arithmetic number, because the mean of its divisors is an integer number (8823600).

Almost surely, 2^215140002 is an apocalyptic number.

215140002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

215140002 is an abundant number, since it is smaller than the sum of its proper divisors (349570398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215140002 is a wasteful number, since it uses less digits than its factorization.

215140002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24551.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 215140002 is about 14667.6515502653. The cubic root of 215140002 is about 599.2026464037.

Adding to 215140002 its reverse (200041512), we get a palindrome (415181514).

The spelling of 215140002 in words is "two hundred fifteen million, one hundred forty thousand, two".