145531314 has 12 divisors (see below), whose sum is σ = 315317886. Its totient is φ = 48510432.

The previous prime is 145531301. The next prime is 145531333. The reversal of 145531314 is 413135541.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 137663289 + 7868025 = 11733^2 + 2805^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4042519 + ... + 4042554.

Almost surely, 2^145531314 is an apocalyptic number.

145531314 is an abundant number, since it is smaller than the sum of its proper divisors (169786572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145531314 is a wasteful number, since it uses less digits than its factorization.

145531314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085081 (or 8085078 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 145531314 is about 12063.6360190450. The cubic root of 145531314 is about 525.9996843478. Note that the first 3 decimals are identical.

Adding to 145531314 its reverse (413135541), we get a palindrome (558666855).

The spelling of 145531314 in words is "one hundred forty-five million, five hundred thirty-one thousand, three hundred fourteen".