1445623103 has 4 divisors (see below), whose sum is σ = 1451827728. Its totient is φ = 1439418480.

The previous prime is 1445623099. The next prime is 1445623129. The reversal of 1445623103 is 3013265441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3013265441 = 31 ⋅97202111.

It is a cyclic number.

It is not a de Polignac number, because 1445623103 - 2² = 1445623099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445623183) 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, 3101963 + ... + 3102428.

It is an arithmetic number, because the mean of its divisors is an integer number (362956932).

Almost surely, 2^1445623103 is an apocalyptic number.

1445623103 is a deficient number, since it is larger than the sum of its proper divisors (6204625).

1445623103 is an equidigital number, since it uses as much as digits as its factorization.

1445623103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204624.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1445623103 is about 38021.3506204080. The cubic root of 1445623103 is about 1130.7111984669.

Adding to 1445623103 its reverse (3013265441), we get a palindrome (4458888544).

The spelling of 1445623103 in words is "one billion, four hundred forty-five million, six hundred twenty-three thousand, one hundred three".