105274387 has 4 divisors (see below), whose sum is σ = 111467016. Its totient is φ = 99081760.

The previous prime is 105274369. The next prime is 105274399. The reversal of 105274387 is 783472501.

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

It is a cyclic number.

It is not a de Polignac number, because 105274387 - 2⁷ = 105274259 is a prime.

It is a super-2 number, since 2×105274387² = 22165393116451538, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (105274087) 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, 3096289 + ... + 3096322.

It is an arithmetic number, because the mean of its divisors is an integer number (27866754).

Almost surely, 2^105274387 is an apocalyptic number.

105274387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

105274387 is a deficient number, since it is larger than the sum of its proper divisors (6192629).

105274387 is an equidigital number, since it uses as much as digits as its factorization.

105274387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192628.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 105274387 is about 10260.3307451563. The cubic root of 105274387 is about 472.1799846841.

The spelling of 105274387 in words is "one hundred five million, two hundred seventy-four thousand, three hundred eighty-seven".