2091415 has 16 divisors (see below), whose sum is σ = 2635776. Its totient is φ = 1591200.

The previous prime is 2091409. The next prime is 2091421. The reversal of 2091415 is 5141902.

It is an interprime number because it is at equal distance from previous prime (2091409) and next prime (2091421).

It is not a de Polignac number, because 2091415 - 2¹⁹ = 1567127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15900 + ... + 16030.

It is an arithmetic number, because the mean of its divisors is an integer number (164736).

2^2091415 is an apocalyptic number.

2091415 is a deficient number, since it is larger than the sum of its proper divisors (544361).

2091415 is a wasteful number, since it uses less digits than its factorization.

2091415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270.

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

The square root of 2091415 is about 1446.1725346583. The cubic root of 2091415 is about 127.8831738409.

The spelling of 2091415 in words is "two million, ninety-one thousand, four hundred fifteen".