145270669 has 2 divisors, whose sum is σ = 145270670. Its totient is φ = 145270668.

The previous prime is 145270649. The next prime is 145270709. The reversal of 145270669 is 966072541.

It is an a-pointer prime, because the next prime (145270709) can be obtained adding 145270669 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133125444 + 12145225 = 11538^2 + 3485^2 .

It is a cyclic number.

It is not a de Polignac number, because 145270669 - 2²⁵ = 111716237 is a prime.

It is a super-2 number, since 2×145270669² = 42207134543415122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145270649) 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, 72635334 + 72635335.

It is an arithmetic number, because the mean of its divisors is an integer number (72635335).

Almost surely, 2^145270669 is an apocalyptic number.

It is an amenable number.

145270669 is a deficient number, since it is larger than the sum of its proper divisors (1).

145270669 is an equidigital number, since it uses as much as digits as its factorization.

145270669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 145270669 is about 12052.8282573013. The cubic root of 145270669 is about 525.6854767884.

The spelling of 145270669 in words is "one hundred forty-five million, two hundred seventy thousand, six hundred sixty-nine".