145345446 has 12 divisors (see below), whose sum is σ = 314915172. Its totient is φ = 48448476.

The previous prime is 145345439. The next prime is 145345457. The reversal of 145345446 is 644543541.

145345446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145345446² = 42250597345877832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145345446.

It is a congruent number.

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, 4037356 + ... + 4037391.

It is an arithmetic number, because the mean of its divisors is an integer number (26242931).

Almost surely, 2^145345446 is an apocalyptic number.

145345446 is an abundant number, since it is smaller than the sum of its proper divisors (169569726).

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

145345446 is a wasteful number, since it uses less digits than its factorization.

145345446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074755 (or 8074752 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 145345446 is about 12055.9299102143. The cubic root of 145345446 is about 525.7756588841.

Adding to 145345446 its reverse (644543541), we get a palindrome (789888987).

The spelling of 145345446 in words is "one hundred forty-five million, three hundred forty-five thousand, four hundred forty-six".