2149371 has 24 divisors (see below), whose sum is σ = 3592160. Its totient is φ = 1213056.

The previous prime is 2149351. The next prime is 2149379. The reversal of 2149371 is 1739412.

It is not a de Polignac number, because 2149371 - 2¹⁰ = 2148347 is a prime.

It is a super-4 number, since 4×2149371⁴ (a number of 26 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

2149371 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2149379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6711 + ... + 7023.

2^2149371 is an apocalyptic number.

2149371 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2149371 is a deficient number, since it is larger than the sum of its proper divisors (1442789).

2149371 is a wasteful number, since it uses less digits than its factorization.

2149371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 432 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 2149371 is about 1466.0733269520. The cubic root of 2149371 is about 129.0537003754.

The spelling of 2149371 in words is "two million, one hundred forty-nine thousand, three hundred seventy-one".