145014481 has 4 divisors (see below), whose sum is σ = 145109412. Its totient is φ = 144919552.

The previous prime is 145014473. The next prime is 145014491. The reversal of 145014481 is 184410541.

145014481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 81270225 + 63744256 = 9015^2 + 7984^2 .

It is a cyclic number.

It is not a de Polignac number, because 145014481 - 2³ = 145014473 is a prime.

It is a super-2 number, since 2×145014481² = 42058399399398722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145014451) 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, 45136 + ... + 48241.

It is an arithmetic number, because the mean of its divisors is an integer number (36277353).

Almost surely, 2^145014481 is an apocalyptic number.

It is an amenable number.

145014481 is a deficient number, since it is larger than the sum of its proper divisors (94931).

145014481 is an equidigital number, since it uses as much as digits as its factorization.

145014481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94930.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 145014481 is about 12042.1958545774. The cubic root of 145014481 is about 525.3762756800.

It can be divided in two parts, 1450 and 14481, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 145014481 in words is "one hundred forty-five million, fourteen thousand, four hundred eighty-one".