145121567 has 2 divisors, whose sum is σ = 145121568. Its totient is φ = 145121566.

The previous prime is 145121521. The next prime is 145121573. The reversal of 145121567 is 765121541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145121567 - 2¹⁸ = 144859423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145141567) 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, 72560783 + 72560784.

It is an arithmetic number, because the mean of its divisors is an integer number (72560784).

Almost surely, 2^145121567 is an apocalyptic number.

145121567 is a deficient number, since it is larger than the sum of its proper divisors (1).

145121567 is an equidigital number, since it uses as much as digits as its factorization.

145121567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 145121567 is about 12046.6413161512. The cubic root of 145121567 is about 525.5055652990.

The spelling of 145121567 in words is "one hundred forty-five million, one hundred twenty-one thousand, five hundred sixty-seven".