103245421 has 4 divisors (see below), whose sum is σ = 105763644. Its totient is φ = 100727200.

The previous prime is 103245419. The next prime is 103245463. The reversal of 103245421 is 124542301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124542301 = 13 ⋅9580177.

It can be written as a sum of positive squares in 2 ways, for example, as 17015625 + 86229796 = 4125^2 + 9286^2 .

It is a cyclic number.

It is not a de Polignac number, because 103245421 - 2¹ = 103245419 is a prime.

It is a super-3 number, since 3×103245421³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103245392 and 103245401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103245491) 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, 1259050 + ... + 1259131.

It is an arithmetic number, because the mean of its divisors is an integer number (26440911).

Almost surely, 2^103245421 is an apocalyptic number.

It is an amenable number.

103245421 is a deficient number, since it is larger than the sum of its proper divisors (2518223).

103245421 is an equidigital number, since it uses as much as digits as its factorization.

103245421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518222.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 103245421 is about 10160.9753960926. The cubic root of 103245421 is about 469.1268245539.

Adding to 103245421 its reverse (124542301), we get a palindrome (227787722).

The spelling of 103245421 in words is "one hundred three million, two hundred forty-five thousand, four hundred twenty-one".