145314339209 has 6 divisors (see below), whose sum is σ = 157352213646. Its totient is φ = 134136312960.

The previous prime is 145314339179. The next prime is 145314339211. The reversal of 145314339209 is 902933413541.

It can be written as a sum of positive squares in 3 ways, for example, as 20001879184 + 125312460025 = 141428^2 + 353995^2 .

It is not a de Polignac number, because 145314339209 - 2²⁴ = 145297561993 is a prime.

It is a super-2 number, since 2×145314339209² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145314339209.

It is not an unprimeable number, because it can be changed into a prime (145314339409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429923912 + ... + 429924249.

It is an arithmetic number, because the mean of its divisors is an integer number (26225368941).

Almost surely, 2^145314339209 is an apocalyptic number.

It is an amenable number.

145314339209 is a deficient number, since it is larger than the sum of its proper divisors (12037874437).

145314339209 is an equidigital number, since it uses as much as digits as its factorization.

145314339209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859848187 (or 859848174 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 145314339209 in words is "one hundred forty-five billion, three hundred fourteen million, three hundred thirty-nine thousand, two hundred nine".