2145450103 has 2 divisors, whose sum is σ = 2145450104. Its totient is φ = 2145450102.

The previous prime is 2145450079. The next prime is 2145450107. The reversal of 2145450103 is 3010545412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145450103 - 2²¹ = 2143352951 is a prime.

It is a super-2 number, since 2×2145450103² = 9205912288925421218, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145450107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072725051 + 1072725052.

It is an arithmetic number, because the mean of its divisors is an integer number (1072725052).

Almost surely, 2^2145450103 is an apocalyptic number.

2145450103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145450103 is an equidigital number, since it uses as much as digits as its factorization.

2145450103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2145450103 is about 46319.0036917894. The cubic root of 2145450103 is about 1289.7517906762.

Adding to 2145450103 its reverse (3010545412), we get a palindrome (5155995515).

The spelling of 2145450103 in words is "two billion, one hundred forty-five million, four hundred fifty thousand, one hundred three".