65149722 has 48 divisors (see below), whose sum is σ = 154653408. Its totient is φ = 19657440.

The previous prime is 65149703. The next prime is 65149723. The reversal of 65149722 is 22794156.

65149722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65149723) by changing a digit.

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, 57453 + ... + 58575.

It is an arithmetic number, because the mean of its divisors is an integer number (3221946).

Almost surely, 2^65149722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65149722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77326704).

65149722 is an abundant number, since it is smaller than the sum of its proper divisors (89503686).

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

65149722 is a wasteful number, since it uses less digits than its factorization.

65149722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1432 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 65149722 is about 8071.5377717013. The cubic root of 65149722 is about 402.3810525157.

The spelling of 65149722 in words is "sixty-five million, one hundred forty-nine thousand, seven hundred twenty-two".