145353331 has 2 divisors, whose sum is σ = 145353332. Its totient is φ = 145353330.

The previous prime is 145353319. The next prime is 145353361. The reversal of 145353331 is 133353541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145353331 - 2⁹ = 145352819 is a prime.

It is a super-2 number, since 2×145353331² = 42255181665591122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145353331.

It is not a weakly prime, because it can be changed into another prime (145353311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72676665 + 72676666.

It is an arithmetic number, because the mean of its divisors is an integer number (72676666).

Almost surely, 2^145353331 is an apocalyptic number.

145353331 is a deficient number, since it is larger than the sum of its proper divisors (1).

145353331 is an equidigital number, since it uses as much as digits as its factorization.

145353331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 28.

The square root of 145353331 is about 12056.2569232743. The cubic root of 145353331 is about 525.7851665002.

The spelling of 145353331 in words is "one hundred forty-five million, three hundred fifty-three thousand, three hundred thirty-one".