145778853 has 64 divisors (see below), whose sum is σ = 236390400. Its totient is φ = 78946560.

The previous prime is 145778851. The next prime is 145778861. The reversal of 145778853 is 358877541.

It is a happy number.

It is not a de Polignac number, because 145778853 - 2¹ = 145778851 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145778851) 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 63 ways as a sum of consecutive naturals, for example, 814318 + ... + 814496.

It is an arithmetic number, because the mean of its divisors is an integer number (3693600).

Almost surely, 2^145778853 is an apocalyptic number.

It is an amenable number.

145778853 is a deficient number, since it is larger than the sum of its proper divisors (90611547).

145778853 is a wasteful number, since it uses less digits than its factorization.

145778853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282.

The product of its digits is 940800, while the sum is 48.

The square root of 145778853 is about 12073.8913776794. The cubic root of 145778853 is about 526.2977454738.

The spelling of 145778853 in words is "one hundred forty-five million, seven hundred seventy-eight thousand, eight hundred fifty-three".