103278253 has 4 divisors (see below), whose sum is σ = 111222748. Its totient is φ = 95333760.

The previous prime is 103278239. The next prime is 103278323. The reversal of 103278253 is 352872301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352872301 = 223 ⋅1582387.

It can be written as a sum of positive squares in 2 ways, for example, as 42016324 + 61261929 = 6482^2 + 7827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103278253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103278653) 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, 3972228 + ... + 3972253.

It is an arithmetic number, because the mean of its divisors is an integer number (27805687).

Almost surely, 2^103278253 is an apocalyptic number.

103278253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

103278253 is a deficient number, since it is larger than the sum of its proper divisors (7944495).

103278253 is an equidigital number, since it uses as much as digits as its factorization.

103278253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7944494.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 103278253 is about 10162.5908606024. The cubic root of 103278253 is about 469.1765466607.

The spelling of 103278253 in words is "one hundred three million, two hundred seventy-eight thousand, two hundred fifty-three".