1231602 has 8 divisors (see below), whose sum is σ = 2463216. Its totient is φ = 410532.

The previous prime is 1231597. The next prime is 1231613. The reversal of 1231602 is 2061321.

It is a sphenic number, since it is the product of 3 distinct primes.

1231602 is an admirable number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 102628 + ... + 102639.

It is an arithmetic number, because the mean of its divisors is an integer number (307902).

2^1231602 is an apocalyptic number.

1231602 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231602 is a wasteful number, since it uses less digits than its factorization.

1231602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205272.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1231602 is about 1109.7756530038. The cubic root of 1231602 is about 107.1906230196.

Adding to 1231602 its reverse (2061321), we get a palindrome (3292923).

The spelling of 1231602 in words is "one million, two hundred thirty-one thousand, six hundred two".