101127742 has 8 divisors (see below), whose sum is σ = 153612000. Its totient is φ = 49923744.

The previous prime is 101127739. The next prime is 101127743. The reversal of 101127742 is 247721101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101127743) 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 3 ways as a sum of consecutive naturals, for example, 319867 + ... + 320182.

It is an arithmetic number, because the mean of its divisors is an integer number (19201500).

Almost surely, 2^101127742 is an apocalyptic number.

101127742 is a deficient number, since it is larger than the sum of its proper divisors (52484258).

101127742 is an equidigital number, since it uses as much as digits as its factorization.

101127742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640130.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 101127742 is about 10056.2290148942. The cubic root of 101127742 is about 465.8972032827.

Adding to 101127742 its reverse (247721101), we get a palindrome (348848843).

It can be divided in two parts, 10112 and 7742, that multiplied together give a square (78287104 = 8848²).

The spelling of 101127742 in words is "one hundred one million, one hundred twenty-seven thousand, seven hundred forty-two".