61320150 has 72 divisors (see below), whose sum is σ = 168631320. Its totient is φ = 15966720.

The previous prime is 61320131. The next prime is 61320167. The reversal of 61320150 is 5102316.

61320150 is a `hidden beast` number, since 613 + 2 + 0 + 1 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17766 + ... + 20934.

Almost surely, 2^61320150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61320150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84315660).

61320150 is an abundant number, since it is smaller than the sum of its proper divisors (107311170).

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

61320150 is a wasteful number, since it uses less digits than its factorization.

61320150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230 (or 3222 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 61320150 is about 7830.7183578520. The cubic root of 61320150 is about 394.3371889093.

Adding to 61320150 its reverse (5102316), we get a palindrome (66422466).

The spelling of 61320150 in words is "sixty-one million, three hundred twenty thousand, one hundred fifty".