145481065 has 8 divisors (see below), whose sum is σ = 174871368. Its totient is φ = 116188800.

The previous prime is 145481057. The next prime is 145481123. The reversal of 145481065 is 560184541.

It can be written as a sum of positive squares in 4 ways, for example, as 26409321 + 119071744 = 5139^2 + 10912^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145481065 - 2³ = 145481057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145481065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21202 + ... + 27211.

It is an arithmetic number, because the mean of its divisors is an integer number (21858921).

Almost surely, 2^145481065 is an apocalyptic number.

It is an amenable number.

145481065 is a deficient number, since it is larger than the sum of its proper divisors (29390303).

145481065 is an equidigital number, since it uses as much as digits as its factorization.

145481065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49019.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 145481065 is about 12061.5531752756. The cubic root of 145481065 is about 525.9391383846.

The spelling of 145481065 in words is "one hundred forty-five million, four hundred eighty-one thousand, sixty-five".