145716653 has 4 divisors (see below), whose sum is σ = 145830300. Its totient is φ = 145603008.

The previous prime is 145716631. The next prime is 145716667. The reversal of 145716653 is 356617541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134977924 + 10738729 = 11618^2 + 3277^2 .

It is a cyclic number.

It is not a de Polignac number, because 145716653 - 2⁶ = 145716589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145716853) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54878 + ... + 57471.

It is an arithmetic number, because the mean of its divisors is an integer number (36457575).

Almost surely, 2^145716653 is an apocalyptic number.

It is an amenable number.

145716653 is a deficient number, since it is larger than the sum of its proper divisors (113647).

145716653 is a wasteful number, since it uses less digits than its factorization.

145716653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113646.

The product of its digits is 75600, while the sum is 38.

The square root of 145716653 is about 12071.3152970171. The cubic root of 145716653 is about 526.2228823598. Note that the first 3 decimals are identical.

The spelling of 145716653 in words is "one hundred forty-five million, seven hundred sixteen thousand, six hundred fifty-three".