145682869 has 2 divisors, whose sum is σ = 145682870. Its totient is φ = 145682868.

The previous prime is 145682827. The next prime is 145682941. The reversal of 145682869 is 968286541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123498769 + 22184100 = 11113^2 + 4710^2 .

It is a cyclic number.

It is not a de Polignac number, because 145682869 - 2¹³ = 145674677 is a prime.

It is a super-2 number, since 2×145682869² = 42446996640142322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145682819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72841434 + 72841435.

It is an arithmetic number, because the mean of its divisors is an integer number (72841435).

Almost surely, 2^145682869 is an apocalyptic number.

It is an amenable number.

145682869 is a deficient number, since it is larger than the sum of its proper divisors (1).

145682869 is an equidigital number, since it uses as much as digits as its factorization.

145682869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 49.

The square root of 145682869 is about 12069.9158654897. The cubic root of 145682869 is about 526.1822114468.

The spelling of 145682869 in words is "one hundred forty-five million, six hundred eighty-two thousand, eight hundred sixty-nine".