145810393 has 2 divisors, whose sum is σ = 145810394. Its totient is φ = 145810392.

The previous prime is 145810369. The next prime is 145810429. The reversal of 145810393 is 393018541.

145810393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143928009 + 1882384 = 11997^2 + 1372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145810393 is a prime.

It is not a weakly prime, because it can be changed into another prime (145810993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72905196 + 72905197.

It is an arithmetic number, because the mean of its divisors is an integer number (72905197).

Almost surely, 2^145810393 is an apocalyptic number.

It is an amenable number.

145810393 is a deficient number, since it is larger than the sum of its proper divisors (1).

145810393 is an equidigital number, since it uses as much as digits as its factorization.

145810393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 145810393 is about 12075.1974310982. The cubic root of 145810393 is about 526.3356984727.

The spelling of 145810393 in words is "one hundred forty-five million, eight hundred ten thousand, three hundred ninety-three".