145662785 has 8 divisors (see below), whose sum is σ = 175683816. Its totient is φ = 115937920.

The previous prime is 145662779. The next prime is 145662787. The reversal of 145662785 is 587266541.

It can be written as a sum of positive squares in 4 ways, for example, as 86787856 + 58874929 = 9316^2 + 7673^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145662785 - 2⁸ = 145662529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145662787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72956 + ... + 74925.

It is an arithmetic number, because the mean of its divisors is an integer number (21960477).

Almost surely, 2^145662785 is an apocalyptic number.

It is an amenable number.

145662785 is a deficient number, since it is larger than the sum of its proper divisors (30021031).

145662785 is a wasteful number, since it uses less digits than its factorization.

145662785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148083.

The product of its digits is 403200, while the sum is 44.

The square root of 145662785 is about 12069.0838508977. The cubic root of 145662785 is about 526.1580303167.

The spelling of 145662785 in words is "one hundred forty-five million, six hundred sixty-two thousand, seven hundred eighty-five".