105210154 has 12 divisors (see below), whose sum is σ = 183581154. Its totient is φ = 45090024.

The previous prime is 105210151. The next prime is 105210169. The reversal of 105210154 is 451012501.

It can be written as a sum of positive squares in only one way, i.e., 71859529 + 33350625 = 8477^2 + 5775^2 .

It is a super-2 number, since 2×105210154² = 22138353009407432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105210151) 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 5 ways as a sum of consecutive naturals, for example, 536689 + ... + 536884.

Almost surely, 2^105210154 is an apocalyptic number.

105210154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

105210154 is a deficient number, since it is larger than the sum of its proper divisors (78371000).

105210154 is a wasteful number, since it uses less digits than its factorization.

105210154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073589 (or 1073582 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 105210154 is about 10257.2001052919. The cubic root of 105210154 is about 472.0839318567.

Adding to 105210154 its reverse (451012501), we get a palindrome (556222655).

The spelling of 105210154 in words is "one hundred five million, two hundred ten thousand, one hundred fifty-four".