2145349 has 8 divisors (see below), whose sum is σ = 2296728. Its totient is φ = 1996800.

The previous prime is 2145343. The next prime is 2145359. The reversal of 2145349 is 9435412.

It can be written as a sum of positive squares in 4 ways, for example, as 42849 + 2102500 = 207^2 + 1450^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2145349 - 2⁹ = 2144837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (287091).

2^2145349 is an apocalyptic number.

It is an amenable number.

2145349 is a deficient number, since it is larger than the sum of its proper divisors (151379).

2145349 is a wasteful number, since it uses less digits than its factorization.

2145349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its digits is 4320, while the sum is 28.

The square root of 2145349 is about 1464.7009933771. The cubic root of 2145349 is about 128.9731530775.

The spelling of 2145349 in words is "two million, one hundred forty-five thousand, three hundred forty-nine".