145313450 has 24 divisors (see below), whose sum is σ = 286183692. Its totient is φ = 54705920.

The previous prime is 145313449. The next prime is 145313503. The reversal of 145313450 is 54313541.

It can be written as a sum of positive squares in 6 ways, for example, as 30459361 + 114854089 = 5519^2 + 10717^2 .

It is a super-2 number, since 2×145313450² = 42231997501805000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84629 + ... + 86328.

Almost surely, 2^145313450 is an apocalyptic number.

145313450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145313450 is a deficient number, since it is larger than the sum of its proper divisors (140870242).

145313450 is a wasteful number, since it uses less digits than its factorization.

145313450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170986 (or 170981 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 145313450 is about 12054.6028553412. The cubic root of 145313450 is about 525.7370750526.

Adding to 145313450 its reverse (54313541), we get a palindrome (199626991).

Subtracting from 145313450 its reverse (54313541), we obtain a palindrome (90999909).

The spelling of 145313450 in words is "one hundred forty-five million, three hundred thirteen thousand, four hundred fifty".