61234100 has 18 divisors (see below), whose sum is σ = 132878214. Its totient is φ = 24493600.

The previous prime is 61234039. The next prime is 61234123. The reversal of 61234100 is 143216.

It can be written as a sum of positive squares in 3 ways, for example, as 2650384 + 58583716 = 1628^2 + 7654^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306071 + ... + 306270.

It is an arithmetic number, because the mean of its divisors is an integer number (7382123).

Almost surely, 2^61234100 is an apocalyptic number.

It is an amenable number.

61234100 is an abundant number, since it is smaller than the sum of its proper divisors (71644114).

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

61234100 is a wasteful number, since it uses less digits than its factorization.

61234100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612355 (or 612348 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 61234100 is about 7825.2220415781. Note that the first 3 decimals coincide. The cubic root of 61234100 is about 394.1526459818.

Adding to 61234100 its reverse (143216), we get a palindrome (61377316).

The spelling of 61234100 in words is "sixty-one million, two hundred thirty-four thousand, one hundred".