61361712 has 100 divisors (see below), whose sum is σ = 179597880. Its totient is φ = 20224512.

The previous prime is 61361693. The next prime is 61361753. The reversal of 61361712 is 21716316.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 146239 + ... + 146657.

Almost surely, 2^61361712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61361712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89798940).

61361712 is an abundant number, since it is smaller than the sum of its proper divisors (118236168).

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

61361712 is a wasteful number, since it uses less digits than its factorization.

61361712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 537 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 61361712 is about 7833.3716878494. The cubic root of 61361712 is about 394.4262609940.

The spelling of 61361712 in words is "sixty-one million, three hundred sixty-one thousand, seven hundred twelve".