145730473 has 16 divisors (see below), whose sum is σ = 172385280. Its totient is φ = 120556800.

The previous prime is 145730467. The next prime is 145730479. The reversal of 145730473 is 374037541.

It is an interprime number because it is at equal distance from previous prime (145730467) and next prime (145730479).

It is a de Polignac number, because none of the positive numbers 2^k-145730473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145730479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112413 + ... + 113701.

It is an arithmetic number, because the mean of its divisors is an integer number (10774080).

Almost surely, 2^145730473 is an apocalyptic number.

It is an amenable number.

145730473 is a deficient number, since it is larger than the sum of its proper divisors (26654807).

145730473 is a wasteful number, since it uses less digits than its factorization.

145730473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 145730473 is about 12071.8877148522. The cubic root of 145730473 is about 526.2395177733.

The spelling of 145730473 in words is "one hundred forty-five million, seven hundred thirty thousand, four hundred seventy-three".