215435241 has 16 divisors (see below), whose sum is σ = 364758400. Its totient is φ = 123105744.

The previous prime is 215435189. The next prime is 215435267. The reversal of 215435241 is 142534512.

It is not a de Polignac number, because 215435241 - 2¹³ = 215427049 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215485241) 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, 569746 + ... + 570123.

It is an arithmetic number, because the mean of its divisors is an integer number (22797400).

Almost surely, 2^215435241 is an apocalyptic number.

215435241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

215435241 is a deficient number, since it is larger than the sum of its proper divisors (149323159).

215435241 is a wasteful number, since it uses less digits than its factorization.

215435241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139885 (or 1139879 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 215435241 is about 14677.7123898787. The cubic root of 215435241 is about 599.4766185859.

Adding to 215435241 its reverse (142534512), we get a palindrome (357969753).

The spelling of 215435241 in words is "two hundred fifteen million, four hundred thirty-five thousand, two hundred forty-one".