215014136 has 8 divisors (see below), whose sum is σ = 403151520. Its totient is φ = 107507064.

The previous prime is 215014133. The next prime is 215014139. The reversal of 215014136 is 631410512.

It is an interprime number because it is at equal distance from previous prime (215014133) and next prime (215014139).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215014133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13438376 + ... + 13438391.

It is an arithmetic number, because the mean of its divisors is an integer number (50393940).

Almost surely, 2^215014136 is an apocalyptic number.

It is an amenable number.

215014136 is a deficient number, since it is larger than the sum of its proper divisors (188137384).

215014136 is a wasteful number, since it uses less digits than its factorization.

215014136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26876773 (or 26876769 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 215014136 is about 14663.3603242913. The cubic root of 215014136 is about 599.0857706450.

Adding to 215014136 its reverse (631410512), we get a palindrome (846424648).

The spelling of 215014136 in words is "two hundred fifteen million, fourteen thousand, one hundred thirty-six".