1661482 has 4 divisors (see below), whose sum is σ = 2492226. Its totient is φ = 830740.

The previous prime is 1661479. The next prime is 1661489. The reversal of 1661482 is 2841661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2841661 = 229 ⋅12409.

It can be written as a sum of positive squares in only one way, i.e., 1390041 + 271441 = 1179^2 + 521^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1661482.

It is not an unprimeable number, because it can be changed into a prime (1661489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415369 + ... + 415372.

2^1661482 is an apocalyptic number.

1661482 is a deficient number, since it is larger than the sum of its proper divisors (830744).

1661482 is an equidigital number, since it uses as much as digits as its factorization.

1661482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830743.

The product of its digits is 2304, while the sum is 28.

The square root of 1661482 is about 1288.9848719050. The cubic root of 1661482 is about 118.4400404052.

The spelling of 1661482 in words is "one million, six hundred sixty-one thousand, four hundred eighty-two".