215134641 has 12 divisors (see below), whose sum is σ = 310936080. Its totient is φ = 143337240.

The previous prime is 215134639. The next prime is 215134649. The reversal of 215134641 is 146431512.

It is a happy number.

215134641 is a `hidden beast` number, since 2 + 1 + 5 + 13 + 4 + 641 = 666.

215134641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215134641 - 2¹ = 215134639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215134649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11190 + ... + 23568.

It is an arithmetic number, because the mean of its divisors is an integer number (25911340).

Almost surely, 2^215134641 is an apocalyptic number.

It is an amenable number.

215134641 is a deficient number, since it is larger than the sum of its proper divisors (95801439).

215134641 is a wasteful number, since it uses less digits than its factorization.

215134641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14316 (or 14313 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 215134641 is about 14667.4688000350. The cubic root of 215134641 is about 599.1976692539.

The spelling of 215134641 in words is "two hundred fifteen million, one hundred thirty-four thousand, six hundred forty-one".