2148929 has 4 divisors (see below), whose sum is σ = 2223060. Its totient is φ = 2074800.

The previous prime is 2148907. The next prime is 2148947. The reversal of 2148929 is 9298412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1050625 + 1098304 = 1025^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148929 - 2²⁰ = 1100353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37022 + ... + 37079.

It is an arithmetic number, because the mean of its divisors is an integer number (555765).

2^2148929 is an apocalyptic number.

2148929 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2148929 is a deficient number, since it is larger than the sum of its proper divisors (74131).

2148929 is an equidigital number, since it uses as much as digits as its factorization.

2148929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74130.

The product of its digits is 10368, while the sum is 35.

The square root of 2148929 is about 1465.9225764003. The cubic root of 2148929 is about 129.0448535010.

The spelling of 2148929 in words is "two million, one hundred forty-eight thousand, nine hundred twenty-nine".