105251242 has 8 divisors (see below), whose sum is σ = 158264100. Its totient is φ = 52496544.

The previous prime is 105251227. The next prime is 105251281. The reversal of 105251242 is 242152501.

It can be written as a sum of positive squares in 2 ways, for example, as 103856481 + 1394761 = 10191^2 + 1181^2 .

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

It is a super-2 number, since 2×105251242² = 22155647885085128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63517 + ... + 65152.

Almost surely, 2^105251242 is an apocalyptic number.

105251242 is a deficient number, since it is larger than the sum of its proper divisors (53012858).

105251242 is a wasteful number, since it uses less digits than its factorization.

105251242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129080.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105251242 is about 10259.2027955392. The cubic root of 105251242 is about 472.1453785877.

The spelling of 105251242 in words is "one hundred five million, two hundred fifty-one thousand, two hundred forty-two".