1956142 has 4 divisors (see below), whose sum is σ = 2934216. Its totient is φ = 978070.

The previous prime is 1956109. The next prime is 1956161. The reversal of 1956142 is 2416591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2416591 = 19 ⋅127189.

It is a self number, because there is not a number n which added to its sum of digits gives 1956142.

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 as a sum of consecutive naturals, namely, 489034 + ... + 489037.

It is an arithmetic number, because the mean of its divisors is an integer number (733554).

2^1956142 is an apocalyptic number.

1956142 is a deficient number, since it is larger than the sum of its proper divisors (978074).

1956142 is an equidigital number, since it uses as much as digits as its factorization.

1956142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978073.

The product of its digits is 2160, while the sum is 28.

The square root of 1956142 is about 1398.6214641568. The cubic root of 1956142 is about 125.0643295547.

The spelling of 1956142 in words is "one million, nine hundred fifty-six thousand, one hundred forty-two".