145944293 has 8 divisors (see below), whose sum is σ = 160789536. Its totient is φ = 131362000.

The previous prime is 145944289. The next prime is 145944313. The reversal of 145944293 is 392449541.

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

It is not a de Polignac number, because 145944293 - 2² = 145944289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145944293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145944203) 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, 64571 + ... + 66792.

It is an arithmetic number, because the mean of its divisors is an integer number (20098692).

Almost surely, 2^145944293 is an apocalyptic number.

It is an amenable number.

145944293 is a deficient number, since it is larger than the sum of its proper divisors (14845243).

145944293 is a wasteful number, since it uses less digits than its factorization.

145944293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131475.

The product of its digits is 155520, while the sum is 41.

The square root of 145944293 is about 12080.7405816034. The cubic root of 145944293 is about 526.4967633241.

The spelling of 145944293 in words is "one hundred forty-five million, nine hundred forty-four thousand, two hundred ninety-three".