101245242 has 16 divisors (see below), whose sum is σ = 231417792. Its totient is φ = 28927200.

The previous prime is 101245229. The next prime is 101245259. The reversal of 101245242 is 242542101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1205259 + ... + 1205342.

It is an arithmetic number, because the mean of its divisors is an integer number (14463612).

Almost surely, 2^101245242 is an apocalyptic number.

101245242 is an abundant number, since it is smaller than the sum of its proper divisors (130172550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101245242 is a wasteful number, since it uses less digits than its factorization.

101245242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410613.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 101245242 is about 10062.0694690506. The cubic root of 101245242 is about 466.0775749332.

Adding to 101245242 its reverse (242542101), we get a palindrome (343787343).

The spelling of 101245242 in words is "one hundred one million, two hundred forty-five thousand, two hundred forty-two".