105631450 has 24 divisors (see below), whose sum is σ = 206817120. Its totient is φ = 40028400.

The previous prime is 105631447. The next prime is 105631451. The reversal of 105631450 is 54136501.

It is a super-2 number, since 2×105631450² = 22316006458205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (105631451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54646 + ... + 56545.

It is an arithmetic number, because the mean of its divisors is an integer number (8617380).

Almost surely, 2^105631450 is an apocalyptic number.

105631450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105631450 is a deficient number, since it is larger than the sum of its proper divisors (101185670).

105631450 is a wasteful number, since it uses less digits than its factorization.

105631450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111222 (or 111217 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 105631450 is about 10277.7161860016. The cubic root of 105631450 is about 472.7132189990.

Adding to 105631450 its reverse (54136501), we get a palindrome (159767951).

The spelling of 105631450 in words is "one hundred five million, six hundred thirty-one thousand, four hundred fifty".