145314445 has 4 divisors (see below), whose sum is σ = 174377340. Its totient is φ = 116251552.

The previous prime is 145314443. The next prime is 145314461. The reversal of 145314445 is 544413541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84879369 + 60435076 = 9213^2 + 7774^2 .

It is a cyclic number.

It is not a de Polignac number, because 145314445 - 2¹ = 145314443 is a prime.

It is a super-2 number, since 2×145314445² = 42232575851316050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145314443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14531440 + ... + 14531449.

It is an arithmetic number, because the mean of its divisors is an integer number (43594335).

Almost surely, 2^145314445 is an apocalyptic number.

It is an amenable number.

145314445 is a deficient number, since it is larger than the sum of its proper divisors (29062895).

145314445 is an equidigital number, since it uses as much as digits as its factorization.

145314445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29062894.

The product of its digits is 19200, while the sum is 31.

The square root of 145314445 is about 12054.6441258131. The cubic root of 145314445 is about 525.7382750039.

Adding to 145314445 its reverse (544413541), we get a palindrome (689727986).

The spelling of 145314445 in words is "one hundred forty-five million, three hundred fourteen thousand, four hundred forty-five".