145383241 has 2 divisors, whose sum is σ = 145383242. Its totient is φ = 145383240.

The previous prime is 145383239. The next prime is 145383247. The reversal of 145383241 is 142383541.

145383241 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., 106007616 + 39375625 = 10296^2 + 6275^2 .

It is an emirp because it is prime and its reverse (142383541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145383241 - 2¹ = 145383239 is a prime.

It is a super-2 number, since 2×145383241² = 42272573527328162, which contains 22 as substring.

Together with 145383239, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145383247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72691620 + 72691621.

It is an arithmetic number, because the mean of its divisors is an integer number (72691621).

Almost surely, 2^145383241 is an apocalyptic number.

It is an amenable number.

145383241 is a deficient number, since it is larger than the sum of its proper divisors (1).

145383241 is an equidigital number, since it uses as much as digits as its factorization.

145383241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 145383241 is about 12057.4972942149. The cubic root of 145383241 is about 525.8212284091.

The spelling of 145383241 in words is "one hundred forty-five million, three hundred eighty-three thousand, two hundred forty-one".