215134045 has 8 divisors (see below), whose sum is σ = 295041024. Its totient is φ = 147520464.

The previous prime is 215134039. The next prime is 215134061. The reversal of 215134045 is 540431512.

It is a happy number.

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

It is not a de Polignac number, because 215134045 - 2³ = 215134037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3073309 + ... + 3073378.

It is an arithmetic number, because the mean of its divisors is an integer number (36880128).

Almost surely, 2^215134045 is an apocalyptic number.

It is an amenable number.

215134045 is a deficient number, since it is larger than the sum of its proper divisors (79906979).

215134045 is an equidigital number, since it uses as much as digits as its factorization.

215134045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146699.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 215134045 is about 14667.4484829503. The cubic root of 215134045 is about 599.1971159226.

Adding to 215134045 its reverse (540431512), we get a palindrome (755565557).

It can be divided in two parts, 2 and 15134045, that multiplied together give a triangular number (30268090 = T₇₇₈₀).

The spelling of 215134045 in words is "two hundred fifteen million, one hundred thirty-four thousand, forty-five".