1445103 has 18 divisors (see below), whose sum is σ = 2296112. Its totient is φ = 875160.

The previous prime is 1445077. The next prime is 1445107. The reversal of 1445103 is 3015441.

Added to its reverse (3015441) it gives a square (4460544 = 2112²).

It is a happy number.

It is not a de Polignac number, because 1445103 - 2⁵ = 1445071 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445107) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 426 + ... + 1752.

2^1445103 is an apocalyptic number.

1445103 is a deficient number, since it is larger than the sum of its proper divisors (851009).

1445103 is a wasteful number, since it uses less digits than its factorization.

1445103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1445103 is about 1202.1243696057. The cubic root of 1445103 is about 113.0575580632.

Adding to 1445103 its reverse (3015441), we get a square (4460544 = 2112²).

The spelling of 1445103 in words is "one million, four hundred forty-five thousand, one hundred three".