1961043 has 8 divisors (see below), whose sum is σ = 2988288. Its totient is φ = 1120584.

The previous prime is 1961039. The next prime is 1961059. The reversal of 1961043 is 3401691.

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

It is not a de Polignac number, because 1961043 - 2² = 1961039 is a prime.

1961043 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1961033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46671 + ... + 46712.

It is an arithmetic number, because the mean of its divisors is an integer number (373536).

2^1961043 is an apocalyptic number.

1961043 is a deficient number, since it is larger than the sum of its proper divisors (1027245).

1961043 is an equidigital number, since it uses as much as digits as its factorization.

1961043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93393.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1961043 is about 1400.3724504574. The cubic root of 1961043 is about 125.1686895815.

Adding to 1961043 its product of nonzero digits (648), we get a palindrome (1961691).

The spelling of 1961043 in words is "one million, nine hundred sixty-one thousand, forty-three".