215808141 has 8 divisors (see below), whose sum is σ = 287866080. Its totient is φ = 143811152.

The previous prime is 215808127. The next prime is 215808167. The reversal of 215808141 is 141808512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 215808141 - 2⁶ = 215808077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215808099 and 215808108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215808101) 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, 6210 + ... + 21683.

It is an arithmetic number, because the mean of its divisors is an integer number (35983260).

Almost surely, 2^215808141 is an apocalyptic number.

It is an amenable number.

215808141 is a deficient number, since it is larger than the sum of its proper divisors (72057939).

215808141 is a wasteful number, since it uses less digits than its factorization.

215808141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30475.

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 215808141 is about 14690.4098309067. The cubic root of 215808141 is about 599.8223001542.

It can be divided in two parts, 215 and 808141, that added together give a triangular number (808356 = T₁₂₇₁).

The spelling of 215808141 in words is "two hundred fifteen million, eight hundred eight thousand, one hundred forty-one".