2149538 has 8 divisors (see below), whose sum is σ = 3335580. Its totient is φ = 1037680.

The previous prime is 2149517. The next prime is 2149559. The reversal of 2149538 is 8359412.

It is an interprime number because it is at equal distance from previous prime (2149517) and next prime (2149559).

It can be written as a sum of positive squares in 2 ways, for example, as 2024929 + 124609 = 1423^2 + 353^2 .

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

It is a super-2 number, since 2×2149538² = 9241027226888, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 4⁷ + 9² + 5⁵ + 3³ + 8⁵ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18473 + ... + 18588.

2^2149538 is an apocalyptic number.

2149538 is a deficient number, since it is larger than the sum of its proper divisors (1186042).

2149538 is a wasteful number, since it uses less digits than its factorization.

2149538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37092.

The product of its digits is 8640, while the sum is 32.

The square root of 2149538 is about 1466.1302807050. The cubic root of 2149538 is about 129.0570426571.

The spelling of 2149538 in words is "two million, one hundred forty-nine thousand, five hundred thirty-eight".