145260869 has 8 divisors (see below), whose sum is σ = 165637080. Its totient is φ = 126199296.

The previous prime is 145260851. The next prime is 145260887. The reversal of 145260869 is 968062541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145260851) and next prime (145260887).

It can be written as a sum of positive squares in 4 ways, for example, as 7480225 + 137780644 = 2735^2 + 11738^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145260869 - 2¹⁶ = 145195333 is a prime.

It is a super-2 number, since 2×145260869² = 42201440125270322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145260839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328424 + ... + 328865.

It is an arithmetic number, because the mean of its divisors is an integer number (20704635).

Almost surely, 2^145260869 is an apocalyptic number.

It is an amenable number.

145260869 is a deficient number, since it is larger than the sum of its proper divisors (20376211).

145260869 is a wasteful number, since it uses less digits than its factorization.

145260869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657319.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 145260869 is about 12052.4217068604. The cubic root of 145260869 is about 525.6736555594.

The spelling of 145260869 in words is "one hundred forty-five million, two hundred sixty thousand, eight hundred sixty-nine".