145130885 has 8 divisors (see below), whose sum is σ = 175042296. Its totient is φ = 115514560.

The previous prime is 145130863. The next prime is 145130903. The reversal of 145130885 is 588031541.

It can be written as a sum of positive squares in 4 ways, for example, as 52548001 + 92582884 = 7249^2 + 9622^2 .

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

It is not a de Polignac number, because 145130885 - 2²² = 140936581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72686 + ... + 74655.

It is an arithmetic number, because the mean of its divisors is an integer number (21880287).

Almost surely, 2^145130885 is an apocalyptic number.

It is an amenable number.

145130885 is a deficient number, since it is larger than the sum of its proper divisors (29911411).

145130885 is a wasteful number, since it uses less digits than its factorization.

145130885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147543.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 145130885 is about 12047.0280567449. The cubic root of 145130885 is about 525.5168123203.

The spelling of 145130885 in words is "one hundred forty-five million, one hundred thirty thousand, eight hundred eighty-five".