105140551 has 8 divisors (see below), whose sum is σ = 107849664. Its totient is φ = 102451200.

The previous prime is 105140549. The next prime is 105140557. The reversal of 105140551 is 155041501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105140551 - 2¹ = 105140549 is a prime.

It is a super-2 number, since 2×105140551² = 22109070929167202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105140557) 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 7 ways as a sum of consecutive naturals, for example, 6151 + ... + 15751.

It is an arithmetic number, because the mean of its divisors is an integer number (13481208).

Almost surely, 2^105140551 is an apocalyptic number.

105140551 is a deficient number, since it is larger than the sum of its proper divisors (2709113).

105140551 is an equidigital number, since it uses as much as digits as its factorization.

105140551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 105140551 is about 10253.8066589926. The cubic root of 105140551 is about 471.9798046875.

The spelling of 105140551 in words is "one hundred five million, one hundred forty thousand, five hundred fifty-one".