105129951 has 8 divisors (see below), whose sum is σ = 140500224. Its totient is φ = 69923160.

The previous prime is 105129943. The next prime is 105129953. The reversal of 105129951 is 159921501.

It is a happy number.

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

It is not a de Polignac number, because 105129951 - 2³ = 105129943 is a prime.

It is a super-2 number, since 2×105129951² = 22104613194524802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105129953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39361 + ... + 41946.

It is an arithmetic number, because the mean of its divisors is an integer number (17562528).

Almost surely, 2^105129951 is an apocalyptic number.

105129951 is a deficient number, since it is larger than the sum of its proper divisors (35370273).

105129951 is an equidigital number, since it uses as much as digits as its factorization.

105129951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81741.

The product of its (nonzero) digits is 4050, while the sum is 33.

The square root of 105129951 is about 10253.2897647536. The cubic root of 105129951 is about 471.9639428910.

The spelling of 105129951 in words is "one hundred five million, one hundred twenty-nine thousand, nine hundred fifty-one".