103405045 has 4 divisors (see below), whose sum is σ = 124086060. Its totient is φ = 82724032.

The previous prime is 103405037. The next prime is 103405061. The reversal of 103405045 is 540504301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540504301 = 23 ⋅23500187.

It can be written as a sum of positive squares in 2 ways, for example, as 16859236 + 86545809 = 4106^2 + 9303^2 .

It is a cyclic number.

It is not a de Polignac number, because 103405045 - 2³ = 103405037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10340500 + ... + 10340509.

It is an arithmetic number, because the mean of its divisors is an integer number (31021515).

Almost surely, 2^103405045 is an apocalyptic number.

It is an amenable number.

103405045 is a deficient number, since it is larger than the sum of its proper divisors (20681015).

103405045 is an equidigital number, since it uses as much as digits as its factorization.

103405045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20681014.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 103405045 is about 10168.8271201747. The cubic root of 103405045 is about 469.3684667203.

Adding to 103405045 its reverse (540504301), we get a palindrome (643909346).

The spelling of 103405045 in words is "one hundred three million, four hundred five thousand, forty-five".