103439253 has 4 divisors (see below), whose sum is σ = 137919008. Its totient is φ = 68959500.

The previous prime is 103439243. The next prime is 103439263. The reversal of 103439253 is 352934301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352934301 = 3 ⋅117644767.

It is an interprime number because it is at equal distance from previous prime (103439243) and next prime (103439263).

It is not a de Polignac number, because 103439253 - 2⁵ = 103439221 is a prime.

It is a super-2 number, since 2×103439253² = 21399358122396018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103439253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103439243) 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, 17239873 + ... + 17239878.

It is an arithmetic number, because the mean of its divisors is an integer number (34479752).

Almost surely, 2^103439253 is an apocalyptic number.

It is an amenable number.

103439253 is a deficient number, since it is larger than the sum of its proper divisors (34479755).

103439253 is an equidigital number, since it uses as much as digits as its factorization.

103439253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34479754.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 103439253 is about 10170.5089843134. The cubic root of 103439253 is about 469.4202191478.

The spelling of 103439253 in words is "one hundred three million, four hundred thirty-nine thousand, two hundred fifty-three".