145307283 has 8 divisors (see below), whose sum is σ = 211356096. Its totient is φ = 88065000.

The previous prime is 145307273. The next prime is 145307293. The reversal of 145307283 is 382703541.

It is an interprime number because it is at equal distance from previous prime (145307273) and next prime (145307293).

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

It is not a de Polignac number, because 145307283 - 2⁹ = 145306771 is a prime.

It is a super-2 number, since 2×145307283² = 42228412985684178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4403251 = 145307283 / (1 + 4 + 5 + 3 + 0 + 7 + 2 + 8 + 3).

It is not an unprimeable number, because it can be changed into a prime (145307273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2201593 + ... + 2201658.

It is an arithmetic number, because the mean of its divisors is an integer number (26419512).

Almost surely, 2^145307283 is an apocalyptic number.

145307283 is a deficient number, since it is larger than the sum of its proper divisors (66048813).

145307283 is a wasteful number, since it uses less digits than its factorization.

145307283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403265.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 145307283 is about 12054.3470582193. The cubic root of 145307283 is about 525.7296376443.

The spelling of 145307283 in words is "one hundred forty-five million, three hundred seven thousand, two hundred eighty-three".