215152011 has 8 divisors (see below), whose sum is σ = 318743760. Its totient is φ = 143434656.

The previous prime is 215151973. The next prime is 215152031. The reversal of 215152011 is 110251512.

It is not a de Polignac number, because 215152011 - 2⁷ = 215151883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215152031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3984270 + ... + 3984323.

It is an arithmetic number, because the mean of its divisors is an integer number (39842970).

Almost surely, 2^215152011 is an apocalyptic number.

215152011 is a deficient number, since it is larger than the sum of its proper divisors (103591749).

215152011 is an equidigital number, since it uses as much as digits as its factorization.

215152011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7968602 (or 7968596 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 215152011 is about 14668.0609147903. The cubic root of 215152011 is about 599.2137952535.

The spelling of 215152011 in words is "two hundred fifteen million, one hundred fifty-two thousand, eleven".