61216102 has 4 divisors (see below), whose sum is σ = 91824156. Its totient is φ = 30608050.

The previous prime is 61216063. The next prime is 61216153. The reversal of 61216102 is 20161216.

61216102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×61216102² = 7494822288148808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61216102.

It is a congruent 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 as a sum of consecutive naturals, namely, 15304024 + ... + 15304027.

It is an arithmetic number, because the mean of its divisors is an integer number (22956039).

Almost surely, 2^61216102 is an apocalyptic number.

61216102 is a deficient number, since it is larger than the sum of its proper divisors (30608054).

61216102 is a wasteful number, since it uses less digits than its factorization.

61216102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30608053.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 61216102 is about 7824.0719577468. The cubic root of 61216102 is about 394.1140255919.

Adding to 61216102 its reverse (20161216), we get a palindrome (81377318).

The spelling of 61216102 in words is "sixty-one million, two hundred sixteen thousand, one hundred two".