145355344 has 10 divisors (see below), whose sum is σ = 281626010. Its totient is φ = 72677664.

The previous prime is 145355323. The next prime is 145355347. The reversal of 145355344 is 443553541.

It can be written as a sum of positive squares in only one way, i.e., 141895744 + 3459600 = 11912^2 + 1860^2 .

It is a super-2 number, since 2×145355344² = 42256352058716672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145355347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4542339 + ... + 4542370.

It is an arithmetic number, because the mean of its divisors is an integer number (28162601).

Almost surely, 2^145355344 is an apocalyptic number.

It is an amenable number.

145355344 is a deficient number, since it is larger than the sum of its proper divisors (136270666).

145355344 is an equidigital number, since it uses as much as digits as its factorization.

145355344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9084717 (or 9084711 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 145355344 is about 12056.3404066076. The cubic root of 145355344 is about 525.7875936906.

The spelling of 145355344 in words is "one hundred forty-five million, three hundred fifty-five thousand, three hundred forty-four".