145882291 has 2 divisors, whose sum is σ = 145882292. Its totient is φ = 145882290.

The previous prime is 145882271. The next prime is 145882301. The reversal of 145882291 is 192288541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145882291 - 2⁵ = 145882259 is a prime.

It is not a weakly prime, because it can be changed into another prime (145882241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72941145 + 72941146.

It is an arithmetic number, because the mean of its divisors is an integer number (72941146).

Almost surely, 2^145882291 is an apocalyptic number.

145882291 is a deficient number, since it is larger than the sum of its proper divisors (1).

145882291 is an equidigital number, since it uses as much as digits as its factorization.

145882291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 40.

The square root of 145882291 is about 12078.1741583734. The cubic root of 145882291 is about 526.4221949723.

The spelling of 145882291 in words is "one hundred forty-five million, eight hundred eighty-two thousand, two hundred ninety-one".