1916541 has 28 divisors (see below), whose sum is σ = 3147840. Its totient is φ = 1156680.

The previous prime is 1916539. The next prime is 1916543. The reversal of 1916541 is 1456191.

1916541 is a `hidden beast` number, since 1 + 9 + 1 + 654 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1916539) and next prime (1916543).

It is not a de Polignac number, because 1916541 - 2¹ = 1916539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916543) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7900 + ... + 8138.

2^1916541 is an apocalyptic number.

1916541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1916541 is a deficient number, since it is larger than the sum of its proper divisors (1231299).

1916541 is an equidigital number, since it uses as much as digits as its factorization.

1916541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 253 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 1916541 is about 1384.3919242758. The cubic root of 1916541 is about 124.2146170572.

The spelling of 1916541 in words is "one million, nine hundred sixteen thousand, five hundred forty-one".