1941815 has 4 divisors (see below), whose sum is σ = 2330184. Its totient is φ = 1553448.

The previous prime is 1941799. The next prime is 1941827. The reversal of 1941815 is 5181491.

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

It is a cyclic number.

It is not a de Polignac number, because 1941815 - 2⁴ = 1941799 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 3 ways as a sum of consecutive naturals, for example, 194177 + ... + 194186.

It is an arithmetic number, because the mean of its divisors is an integer number (582546).

2^1941815 is an apocalyptic number.

1941815 is a deficient number, since it is larger than the sum of its proper divisors (388369).

1941815 is an equidigital number, since it uses as much as digits as its factorization.

1941815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388368.

The product of its digits is 1440, while the sum is 29.

The square root of 1941815 is about 1393.4902224271. The cubic root of 1941815 is about 124.7582527676.

The spelling of 1941815 in words is "one million, nine hundred forty-one thousand, eight hundred fifteen".