1445481 has 12 divisors (see below), whose sum is σ = 2179008. Its totient is φ = 921624.

The previous prime is 1445467. The next prime is 1445497. The reversal of 1445481 is 1845441.

It is a happy number.

It is not a de Polignac number, because 1445481 - 2⁶ = 1445417 is a prime.

It is a super-2 number, since 2×1445481² = 4178830642722, which contains 22 as substring.

1445481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1445401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3285 + ... + 3698.

It is an arithmetic number, because the mean of its divisors is an integer number (181584).

2^1445481 is an apocalyptic number.

It is an amenable number.

1445481 is a deficient number, since it is larger than the sum of its proper divisors (733527).

1445481 is a wasteful number, since it uses less digits than its factorization.

1445481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7012 (or 7009 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 1445481 is about 1202.2815809951. The cubic root of 1445481 is about 113.0674148072.

It can be divided in two parts, 14454 and 81, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 1445481 in words is "one million, four hundred forty-five thousand, four hundred eighty-one".