145093769 has 2 divisors, whose sum is σ = 145093770. Its totient is φ = 145093768.

The previous prime is 145093727. The next prime is 145093771. The reversal of 145093769 is 967390541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87516025 + 57577744 = 9355^2 + 7588^2 .

It is a cyclic number.

It is not a de Polignac number, because 145093769 - 2²⁰ = 144045193 is a prime.

It is a super-2 number, since 2×145093769² = 42104403605250722, which contains 22 as substring.

Together with 145093771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145093789) 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, 72546884 + 72546885.

It is an arithmetic number, because the mean of its divisors is an integer number (72546885).

Almost surely, 2^145093769 is an apocalyptic number.

It is an amenable number.

145093769 is a deficient number, since it is larger than the sum of its proper divisors (1).

145093769 is an equidigital number, since it uses as much as digits as its factorization.

145093769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 145093769 is about 12045.4874953237. The cubic root of 145093769 is about 525.4720096697.

The spelling of 145093769 in words is "one hundred forty-five million, ninety-three thousand, seven hundred sixty-nine".