145651285 has 8 divisors (see below), whose sum is σ = 188226360. Its totient is φ = 107557824.

The previous prime is 145651217. The next prime is 145651301. The reversal of 145651285 is 582156541.

It can be written as a sum of positive squares in 4 ways, for example, as 1435204 + 144216081 = 1198^2 + 12009^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 145651285 - 2²³ = 137262677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120330 + ... + 1120459.

It is an arithmetic number, because the mean of its divisors is an integer number (23528295).

Almost surely, 2^145651285 is an apocalyptic number.

It is an amenable number.

145651285 is a deficient number, since it is larger than the sum of its proper divisors (42575075).

145651285 is a wasteful number, since it uses less digits than its factorization.

145651285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240807.

The product of its digits is 48000, while the sum is 37.

The square root of 145651285 is about 12068.6074175938. The cubic root of 145651285 is about 526.1441833194.

The spelling of 145651285 in words is "one hundred forty-five million, six hundred fifty-one thousand, two hundred eighty-five".