105401555 has 16 divisors (see below), whose sum is σ = 144875520. Its totient is φ = 72112992.

The previous prime is 105401533. The next prime is 105401579. The reversal of 105401555 is 555104501.

It is a de Polignac number, because none of the positive numbers 2^k-105401555 is a prime.

It is a super-2 number, since 2×105401555² = 22218975592836050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13622 + ... + 19908.

It is an arithmetic number, because the mean of its divisors is an integer number (9054720).

Almost surely, 2^105401555 is an apocalyptic number.

105401555 is a deficient number, since it is larger than the sum of its proper divisors (39473965).

105401555 is an equidigital number, since it uses as much as digits as its factorization.

105401555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 105401555 is about 10266.5259460053. The cubic root of 105401555 is about 472.3700341484.

The spelling of 105401555 in words is "one hundred five million, four hundred one thousand, five hundred fifty-five".