61321602 has 16 divisors (see below), whose sum is σ = 126872640. Its totient is φ = 19735632.

The previous prime is 61321541. The next prime is 61321613. The reversal of 61321602 is 20612316.

It is a happy number.

61321602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 7 ways as a sum of consecutive naturals, for example, 176038 + ... + 176385.

It is an arithmetic number, because the mean of its divisors is an integer number (7929540).

Almost surely, 2^61321602 is an apocalyptic number.

61321602 is an abundant number, since it is smaller than the sum of its proper divisors (65551038).

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

61321602 is a wasteful number, since it uses less digits than its factorization.

61321602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352457.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61321602 is about 7830.8110691039. The cubic root of 61321602 is about 394.3403013885.

Adding to 61321602 its reverse (20612316), we get a palindrome (81933918).

The spelling of 61321602 in words is "sixty-one million, three hundred twenty-one thousand, six hundred two".