215151093 has 16 divisors (see below), whose sum is σ = 319256640. Its totient is φ = 143202672.

The previous prime is 215151091. The next prime is 215151107. The reversal of 215151093 is 390151512.

It is not a de Polignac number, because 215151093 - 2¹ = 215151091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215151091) 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, 11530 + ... + 23732.

It is an arithmetic number, because the mean of its divisors is an integer number (19953540).

Almost surely, 2^215151093 is an apocalyptic number.

It is an amenable number.

215151093 is a deficient number, since it is larger than the sum of its proper divisors (104105547).

215151093 is a wasteful number, since it uses less digits than its factorization.

215151093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12865 (or 12859 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 215151093 is about 14668.0296222772. The cubic root of 215151093 is about 599.2129430203.

The spelling of 215151093 in words is "two hundred fifteen million, one hundred fifty-one thousand, ninety-three".