145582273 has 8 divisors (see below), whose sum is σ = 146440448. Its totient is φ = 144727344.

The previous prime is 145582243. The next prime is 145582277. The reversal of 145582273 is 372285541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145582273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145582277) 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, 226090 + ... + 226732.

It is an arithmetic number, because the mean of its divisors is an integer number (18305056).

Almost surely, 2^145582273 is an apocalyptic number.

It is an amenable number.

145582273 is a deficient number, since it is larger than the sum of its proper divisors (858175).

145582273 is an equidigital number, since it uses as much as digits as its factorization.

145582273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its digits is 67200, while the sum is 37.

The square root of 145582273 is about 12065.7479254292. The cubic root of 145582273 is about 526.0610715714.

The spelling of 145582273 in words is "one hundred forty-five million, five hundred eighty-two thousand, two hundred seventy-three".