105140642 has 8 divisors (see below), whose sum is σ = 166011600.
Its totient is φ = 49803444.
The previous prime is 105140639. The next prime is 105140647. The reversal of 105140642 is 246041501.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×1051406422 = 22109109200344328, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (105140647) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1383392 + ... + 1383467.
It is an arithmetic number, because the mean of its divisors is an integer number (20751450).
Almost surely, 2105140642 is an apocalyptic number.
105140642 is a deficient number, since it is larger than the sum of its proper divisors (60870958).
105140642 is a wasteful number, since it uses less digits than its factorization.
105140642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2766880.
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 105140642 is about 10253.8110963680.
The cubic root of 105140642 is about 471.9799408549.
The spelling of 105140642 in words is "one hundred five million, one hundred forty thousand, six hundred forty-two".