105078250 has 16 divisors (see below), whose sum is σ = 196706952. Its totient is φ = 42031200.

The previous prime is 105078217. The next prime is 105078287. The reversal of 105078250 is 52870501.

It can be written as a sum of positive squares in 4 ways, for example, as 15832441 + 89245809 = 3979^2 + 9447^2 .

It is a super-2 number, since 2×105078250² = 22082877246125000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209907 + ... + 210406.

Almost surely, 2^105078250 is an apocalyptic number.

105078250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105078250 is a deficient number, since it is larger than the sum of its proper divisors (91628702).

105078250 is an equidigital number, since it uses as much as digits as its factorization.

105078250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420330 (or 420320 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 105078250 is about 10250.7682638912. The cubic root of 105078250 is about 471.8865624405.

The spelling of 105078250 in words is "one hundred five million, seventy-eight thousand, two hundred fifty".