145807069 has 2 divisors, whose sum is σ = 145807070. Its totient is φ = 145807068.

The previous prime is 145807037. The next prime is 145807073. The reversal of 145807069 is 960708541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145805625 + 1444 = 12075^2 + 38^2 .

It is a cyclic number.

It is not a de Polignac number, because 145807069 - 2⁵ = 145807037 is a prime.

It is a super-2 number, since 2×145807069² = 42519402740741522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145807369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72903534 + 72903535.

It is an arithmetic number, because the mean of its divisors is an integer number (72903535).

Almost surely, 2^145807069 is an apocalyptic number.

It is an amenable number.

145807069 is a deficient number, since it is larger than the sum of its proper divisors (1).

145807069 is an equidigital number, since it uses as much as digits as its factorization.

145807069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 145807069 is about 12075.0597928126. The cubic root of 145807069 is about 526.3316988649.

The spelling of 145807069 in words is "one hundred forty-five million, eight hundred seven thousand, sixty-nine".