144940293 has 16 divisors (see below), whose sum is σ = 215084160. Its totient is φ = 96465888.

The previous prime is 144940291. The next prime is 144940307. The reversal of 144940293 is 392049441.

It is not a de Polignac number, because 144940293 - 2¹ = 144940291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144940291) 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, 13321 + ... + 21617.

It is an arithmetic number, because the mean of its divisors is an integer number (13442760).

Almost surely, 2^144940293 is an apocalyptic number.

It is an amenable number.

144940293 is a deficient number, since it is larger than the sum of its proper divisors (70143867).

144940293 is an equidigital number, since it uses as much as digits as its factorization.

144940293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8953 (or 8947 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 144940293 is about 12039.1151252906. The cubic root of 144940293 is about 525.2866679308.

The spelling of 144940293 in words is "one hundred forty-four million, nine hundred forty thousand, two hundred ninety-three".