145349285 has 8 divisors (see below), whose sum is σ = 175464576. Its totient is φ = 115582480.

The previous prime is 145349279. The next prime is 145349287. The reversal of 145349285 is 582943541.

145349285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-145349285 is a prime.

It is a super-2 number, since 2×145349285² = 42252829300022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145349287) 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, 86201 + ... + 87870.

It is an arithmetic number, because the mean of its divisors is an integer number (21933072).

Almost surely, 2^145349285 is an apocalyptic number.

It is an amenable number.

145349285 is a deficient number, since it is larger than the sum of its proper divisors (30115291).

145349285 is a wasteful number, since it uses less digits than its factorization.

145349285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174243.

The product of its digits is 172800, while the sum is 41.

The square root of 145349285 is about 12056.0891254171. The cubic root of 145349285 is about 525.7802879363.

The spelling of 145349285 in words is "one hundred forty-five million, three hundred forty-nine thousand, two hundred eighty-five".