65145756 has 96 divisors (see below), whose sum is σ = 178124800. Its totient is φ = 18351360.

The previous prime is 65145739. The next prime is 65145757. The reversal of 65145756 is 65754156.

65145756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65145757) 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 31 ways as a sum of consecutive naturals, for example, 91530 + ... + 92238.

Almost surely, 2^65145756 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 65145756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89062400).

65145756 is an abundant number, since it is smaller than the sum of its proper divisors (112979044).

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

65145756 is a wasteful number, since it uses less digits than its factorization.

65145756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 777 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 65145756 is about 8071.2920898701. The cubic root of 65145756 is about 402.3728873458.

Subtracting 65145756 from its reverse (65754156), we obtain a square (608400 = 780²).

The spelling of 65145756 in words is "sixty-five million, one hundred forty-five thousand, seven hundred fifty-six".