2141509 has 8 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 2016432.

The previous prime is 2141497. The next prime is 2141519. The reversal of 2141509 is 9051412.

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

It is not a de Polignac number, because 2141509 - 2¹¹ = 2139461 is a prime.

It is a Duffinian number.

2141509 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2141509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141519) 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, 4902 + ... + 5320.

It is an arithmetic number, because the mean of its divisors is an integer number (283500).

2^2141509 is an apocalyptic number.

It is an amenable number.

2141509 is a deficient number, since it is larger than the sum of its proper divisors (126491).

2141509 is a wasteful number, since it uses less digits than its factorization.

2141509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2141509 is about 1463.3895585250. The cubic root of 2141509 is about 128.8961566398.

Subtracting 2141509 from its reverse (9051412), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2141509 in words is "two million, one hundred forty-one thousand, five hundred nine".