103250405 has 4 divisors (see below), whose sum is σ = 123900492. Its totient is φ = 82600320.

The previous prime is 103250377. The next prime is 103250443. The reversal of 103250405 is 504052301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33477796 + 69772609 = 5786^2 + 8353^2 .

It is not a de Polignac number, because 103250405 - 2¹⁶ = 103184869 is a prime.

It is a super-2 number, since 2×103250405² = 21321292265328050, which contains 22 as substring.

It is a Duffinian number.

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, 10325036 + ... + 10325045.

It is an arithmetic number, because the mean of its divisors is an integer number (30975123).

Almost surely, 2^103250405 is an apocalyptic number.

It is an amenable number.

103250405 is a deficient number, since it is larger than the sum of its proper divisors (20650087).

103250405 is an equidigital number, since it uses as much as digits as its factorization.

103250405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20650086.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 103250405 is about 10161.2206451784. The cubic root of 103250405 is about 469.1343732034.

The spelling of 103250405 in words is "one hundred three million, two hundred fifty thousand, four hundred five".