105439401 has 24 divisors (see below), whose sum is σ = 163048704. Its totient is φ = 68020560.

The previous prime is 105439387. The next prime is 105439487. The reversal of 105439401 is 104934501.

It is not a de Polignac number, because 105439401 - 2¹⁵ = 105406633 is a prime.

It is a super-2 number, since 2×105439401² = 22234934566477602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (105439501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 535 + ... + 14531.

It is an arithmetic number, because the mean of its divisors is an integer number (6793696).

Almost surely, 2^105439401 is an apocalyptic number.

It is an amenable number.

105439401 is a deficient number, since it is larger than the sum of its proper divisors (57609303).

105439401 is an equidigital number, since it uses as much as digits as its factorization.

105439401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14043 (or 14031 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 105439401 is about 10268.3689551944. The cubic root of 105439401 is about 472.4265645511.

The spelling of 105439401 in words is "one hundred five million, four hundred thirty-nine thousand, four hundred one".