1956249 has 6 divisors (see below), whose sum is σ = 2825706. Its totient is φ = 1304160.

The previous prime is 1956239. The next prime is 1956257. The reversal of 1956249 is 9426591.

It can be written as a sum of positive squares in only one way, i.e., 1040400 + 915849 = 1020^2 + 957^2 .

It is not a de Polignac number, because 1956249 - 2⁵ = 1956217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1956239) 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 5 ways as a sum of consecutive naturals, for example, 108672 + ... + 108689.

It is an arithmetic number, because the mean of its divisors is an integer number (470951).

2^1956249 is an apocalyptic number.

It is an amenable number.

1956249 is a deficient number, since it is larger than the sum of its proper divisors (869457).

1956249 is a wasteful number, since it uses less digits than its factorization.

1956249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217367 (or 217364 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1956249 is about 1398.6597155849. The cubic root of 1956249 is about 125.0666098321.

The spelling of 1956249 in words is "one million, nine hundred fifty-six thousand, two hundred forty-nine".