215157038 has 8 divisors (see below), whose sum is σ = 322973400. Its totient is φ = 107499240.

The previous prime is 215157037. The next prime is 215157071. The reversal of 215157038 is 830751512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 215156995 and 215157013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215157037) 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 3 ways as a sum of consecutive naturals, for example, 36188 + ... + 41711.

It is an arithmetic number, because the mean of its divisors is an integer number (40371675).

Almost surely, 2^215157038 is an apocalyptic number.

215157038 is a deficient number, since it is larger than the sum of its proper divisors (107816362).

215157038 is a wasteful number, since it uses less digits than its factorization.

215157038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79282.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 215157038 is about 14668.2322724996. The cubic root of 215157038 is about 599.2184620691.

The spelling of 215157038 in words is "two hundred fifteen million, one hundred fifty-seven thousand, thirty-eight".