61512234 has 48 divisors (see below), whose sum is σ = 148425408. Its totient is φ = 16645824.

The previous prime is 61512223. The next prime is 61512247. The reversal of 61512234 is 43221516.

61512234 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 23 ways as a sum of consecutive naturals, for example, 13134 + ... + 17190.

It is an arithmetic number, because the mean of its divisors is an integer number (3092196).

Almost surely, 2^61512234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61512234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74212704).

61512234 is an abundant number, since it is smaller than the sum of its proper divisors (86913174).

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

61512234 is a wasteful number, since it uses less digits than its factorization.

61512234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4088 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 61512234 is about 7842.9735432424. The cubic root of 61512234 is about 394.7485105341.

It can be divided in two parts, 6151 and 2234, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 61512234 in words is "sixty-one million, five hundred twelve thousand, two hundred thirty-four".