144394933 has 2 divisors, whose sum is σ = 144394934. Its totient is φ = 144394932.

The previous prime is 144394919. The next prime is 144394937. The reversal of 144394933 is 339493441.

144394933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108118404 + 36276529 = 10398^2 + 6023^2 .

It is a cyclic number.

It is not a de Polignac number, because 144394933 - 2²⁵ = 110840501 is a prime.

It is a super-4 number, since 4×144394933⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144394937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72197466 + 72197467.

It is an arithmetic number, because the mean of its divisors is an integer number (72197467).

Almost surely, 2^144394933 is an apocalyptic number.

It is an amenable number.

144394933 is a deficient number, since it is larger than the sum of its proper divisors (1).

144394933 is an equidigital number, since it uses as much as digits as its factorization.

144394933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 40.

The square root of 144394933 is about 12016.4442744100. Note that the first 3 decimals coincide. The cubic root of 144394933 is about 524.6270161060.

The spelling of 144394933 in words is "one hundred forty-four million, three hundred ninety-four thousand, nine hundred thirty-three".