145684293 has 8 divisors (see below), whose sum is σ = 195664128. Its totient is φ = 96413664.

The previous prime is 145684291. The next prime is 145684309. The reversal of 145684293 is 392486541.

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

It is not a de Polignac number, because 145684293 - 2¹ = 145684291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145684291) 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, 176821 + ... + 177642.

It is an arithmetic number, because the mean of its divisors is an integer number (24458016).

Almost surely, 2^145684293 is an apocalyptic number.

It is an amenable number.

145684293 is a deficient number, since it is larger than the sum of its proper divisors (49979835).

145684293 is a wasteful number, since it uses less digits than its factorization.

145684293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354603.

The product of its digits is 207360, while the sum is 42.

The square root of 145684293 is about 12069.9748549862. The cubic root of 145684293 is about 526.1839258580.

The spelling of 145684293 in words is "one hundred forty-five million, six hundred eighty-four thousand, two hundred ninety-three".