22148517 has 16 divisors (see below), whose sum is σ = 30960000. Its totient is φ = 14057472.

The previous prime is 22148479. The next prime is 22148543. The reversal of 22148517 is 71584122.

It is not a de Polignac number, because 22148517 - 2¹¹ = 22146469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22148557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17109 + ... + 18357.

It is an arithmetic number, because the mean of its divisors is an integer number (1935000).

Almost surely, 2^22148517 is an apocalyptic number.

It is an amenable number.

22148517 is a deficient number, since it is larger than the sum of its proper divisors (8811483).

22148517 is a wasteful number, since it uses less digits than its factorization.

22148517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532.

The product of its digits is 4480, while the sum is 30.

The square root of 22148517 is about 4706.2210955288. The cubic root of 22148517 is about 280.8330505290.

It can be divided in two parts, 2214 and 8517, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 22148517 in words is "twenty-two million, one hundred forty-eight thousand, five hundred seventeen".