105451442 has 16 divisors (see below), whose sum is σ = 167831352. Its totient is φ = 49520640.

The previous prime is 105451441. The next prime is 105451471. The reversal of 105451442 is 244154501.

It can be written as a sum of positive squares in 4 ways, for example, as 61481281 + 43970161 = 7841^2 + 6631^2 .

It is a super-2 number, since 2×105451442² = 22240013239758728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105451441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14738 + ... + 20690.

Almost surely, 2^105451442 is an apocalyptic number.

105451442 is a deficient number, since it is larger than the sum of its proper divisors (62379910).

105451442 is a wasteful number, since it uses less digits than its factorization.

105451442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 105451442 is about 10268.9552535786. The cubic root of 105451442 is about 472.4445473029. Note that the first 3 decimals are identical.

The spelling of 105451442 in words is "one hundred five million, four hundred fifty-one thousand, four hundred forty-two".