145048091 has 2 divisors, whose sum is σ = 145048092. Its totient is φ = 145048090.

The previous prime is 145048067. The next prime is 145048093. The reversal of 145048091 is 190840541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145048091 is a prime.

Together with 145048093, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_8181167 and since 145048091 and 8181167 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (145048093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72524045 + 72524046.

It is an arithmetic number, because the mean of its divisors is an integer number (72524046).

Almost surely, 2^145048091 is an apocalyptic number.

145048091 is a deficient number, since it is larger than the sum of its proper divisors (1).

145048091 is an equidigital number, since it uses as much as digits as its factorization.

145048091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 145048091 is about 12043.5912833341. The cubic root of 145048091 is about 525.4168613569.

The spelling of 145048091 in words is "one hundred forty-five million, forty-eight thousand, ninety-one".