1956455 has 4 divisors (see below), whose sum is σ = 2347752. Its totient is φ = 1565160.

The previous prime is 1956439. The next prime is 1956481. The reversal of 1956455 is 5546591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5546591 = 71 ⋅78121.

It is not a de Polignac number, because 1956455 - 2⁴ = 1956439 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 5³ + 6 + 4³ + 5⁵ + 5⁹ .

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, 195641 + ... + 195650.

It is an arithmetic number, because the mean of its divisors is an integer number (586938).

2^1956455 is an apocalyptic number.

1956455 is a deficient number, since it is larger than the sum of its proper divisors (391297).

1956455 is an equidigital number, since it uses as much as digits as its factorization.

1956455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391296.

The product of its digits is 27000, while the sum is 35.

The square root of 1956455 is about 1398.7333555757. The cubic root of 1956455 is about 125.0709996647.

The spelling of 1956455 in words is "one million, nine hundred fifty-six thousand, four hundred fifty-five".