1612742 has 4 divisors (see below), whose sum is σ = 2419116. Its totient is φ = 806370.

The previous prime is 1612733. The next prime is 1612747. The reversal of 1612742 is 2472161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2472161 = 1483 ⋅1667.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403184 + ... + 403187.

It is an arithmetic number, because the mean of its divisors is an integer number (604779).

2^1612742 is an apocalyptic number.

1612742 is a deficient number, since it is larger than the sum of its proper divisors (806374).

1612742 is an equidigital number, since it uses as much as digits as its factorization.

1612742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806373.

The product of its digits is 672, while the sum is 23.

The square root of 1612742 is about 1269.9377937521. The cubic root of 1612742 is about 117.2703709057.

The spelling of 1612742 in words is "one million, six hundred twelve thousand, seven hundred forty-two".