61611402 has 8 divisors (see below), whose sum is σ = 123222816. Its totient is φ = 20537132.

The previous prime is 61611379. The next prime is 61611421. The reversal of 61611402 is 20411616.

61611402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

61611402 is an admirable 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 in 3 ways as a sum of consecutive naturals, for example, 5134278 + ... + 5134289.

It is an arithmetic number, because the mean of its divisors is an integer number (15402852).

Almost surely, 2^61611402 is an apocalyptic number.

61611402 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.

61611402 is a wasteful number, since it uses less digits than its factorization.

61611402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268572.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 61611402 is about 7849.2930891896. The cubic root of 61611402 is about 394.9605301586.

The spelling of 61611402 in words is "sixty-one million, six hundred eleven thousand, four hundred two".