145090243 has 2 divisors, whose sum is σ = 145090244. Its totient is φ = 145090242.

The previous prime is 145090217. The next prime is 145090301. The reversal of 145090243 is 342090541.

145090243 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 is a cyclic number.

It is not a de Polignac number, because 145090243 - 2²¹ = 142993091 is a prime.

It is a super-2 number, since 2×145090243² = 42102357227598098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145090343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72545121 + 72545122.

It is an arithmetic number, because the mean of its divisors is an integer number (72545122).

Almost surely, 2^145090243 is an apocalyptic number.

145090243 is a deficient number, since it is larger than the sum of its proper divisors (1).

145090243 is an equidigital number, since it uses as much as digits as its factorization.

145090243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 145090243 is about 12045.3411325707. The cubic root of 145090243 is about 525.4677530447.

The spelling of 145090243 in words is "one hundred forty-five million, ninety thousand, two hundred forty-three".