145695816 has 144 divisors (see below), whose sum is σ = 467230140. Its totient is φ = 40884480.

The previous prime is 145695811. The next prime is 145695821. The reversal of 145695816 is 618596541.

145695816 is a `hidden beast` number, since 1 + 4 + 5 + 69 + 581 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (145695811) and next prime (145695821).

It can be written as a sum of positive squares in 2 ways, for example, as 145298916 + 396900 = 12054^2 + 630^2 .

It is not an unprimeable number, because it can be changed into a prime (145695811) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 214870 + ... + 215546.

Almost surely, 2^145695816 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 145695816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233615070).

145695816 is an abundant number, since it is smaller than the sum of its proper divisors (321534324).

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

145695816 is a wasteful number, since it uses less digits than its factorization.

145695816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 750 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 145695816 is about 12070.4521870558. The cubic root of 145695816 is about 526.1977984529.

The spelling of 145695816 in words is "one hundred forty-five million, six hundred ninety-five thousand, eight hundred sixteen".