1956245 has 4 divisors (see below), whose sum is σ = 2347500. Its totient is φ = 1564992.

The previous prime is 1956239. The next prime is 1956257. The reversal of 1956245 is 5426591.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5426591 = 479 ⋅11329.

It can be written as a sum of positive squares in 2 ways, for example, as 271441 + 1684804 = 521^2 + 1298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1956245 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 195620 + ... + 195629.

It is an arithmetic number, because the mean of its divisors is an integer number (586875).

2^1956245 is an apocalyptic number.

It is an amenable number.

1956245 is a deficient number, since it is larger than the sum of its proper divisors (391255).

1956245 is an equidigital number, since it uses as much as digits as its factorization.

1956245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391254.

The product of its digits is 10800, while the sum is 32.

The square root of 1956245 is about 1398.6582856438. The cubic root of 1956245 is about 125.0665245896.

The spelling of 1956245 in words is "one million, nine hundred fifty-six thousand, two hundred forty-five".