145013291 has 2 divisors, whose sum is σ = 145013292. Its totient is φ = 145013290.

The previous prime is 145013261. The next prime is 145013293. The reversal of 145013291 is 192310541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145013291 - 2⁶ = 145013227 is a prime.

Together with 145013293, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145013291.

It is not a weakly prime, because it can be changed into another prime (145013293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72506645 + 72506646.

It is an arithmetic number, because the mean of its divisors is an integer number (72506646).

Almost surely, 2^145013291 is an apocalyptic number.

145013291 is a deficient number, since it is larger than the sum of its proper divisors (1).

145013291 is an equidigital number, since it uses as much as digits as its factorization.

145013291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 145013291 is about 12042.1464448827. The cubic root of 145013291 is about 525.3748385833.

It can be divided in two parts, 1450 and 13291, that added together give a palindrome (14741).

The spelling of 145013291 in words is "one hundred forty-five million, thirteen thousand, two hundred ninety-one".