145191323 has 2 divisors, whose sum is σ = 145191324. Its totient is φ = 145191322.

The previous prime is 145191287. The next prime is 145191337. The reversal of 145191323 is 323191541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145191323 - 2²² = 140997019 is a prime.

It is not a weakly prime, because it can be changed into another prime (145191223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72595661 + 72595662.

It is an arithmetic number, because the mean of its divisors is an integer number (72595662).

Almost surely, 2^145191323 is an apocalyptic number.

145191323 is a deficient number, since it is larger than the sum of its proper divisors (1).

145191323 is an equidigital number, since it uses as much as digits as its factorization.

145191323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 145191323 is about 12049.5362151412. The cubic root of 145191323 is about 525.5897505679.

The spelling of 145191323 in words is "one hundred forty-five million, one hundred ninety-one thousand, three hundred twenty-three".