145218283 has 8 divisors (see below), whose sum is σ = 171686880. Its totient is φ = 120180480.

The previous prime is 145218263. The next prime is 145218287. The reversal of 145218283 is 382812541.

It is a happy number.

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

It is not a de Polignac number, because 145218283 - 2²¹ = 143121131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145218287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357478 + ... + 357883.

It is an arithmetic number, because the mean of its divisors is an integer number (21460860).

Almost surely, 2^145218283 is an apocalyptic number.

145218283 is a deficient number, since it is larger than the sum of its proper divisors (26468597).

145218283 is an equidigital number, since it uses as much as digits as its factorization.

145218283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715397.

The product of its digits is 15360, while the sum is 34.

The square root of 145218283 is about 12050.6548784703. The cubic root of 145218283 is about 525.6222801122.

The spelling of 145218283 in words is "one hundred forty-five million, two hundred eighteen thousand, two hundred eighty-three".