101642041 has 2 divisors, whose sum is σ = 101642042. Its totient is φ = 101642040.

The previous prime is 101642033. The next prime is 101642063. The reversal of 101642041 is 140246101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90725625 + 10916416 = 9525^2 + 3304^2 .

It is a cyclic number.

It is not a de Polignac number, because 101642041 - 2³ = 101642033 is a prime.

It is a super-2 number, since 2×101642041² = 20662208997291362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101642141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50821020 + 50821021.

It is an arithmetic number, because the mean of its divisors is an integer number (50821021).

Almost surely, 2^101642041 is an apocalyptic number.

It is an amenable number.

101642041 is a deficient number, since it is larger than the sum of its proper divisors (1).

101642041 is an equidigital number, since it uses as much as digits as its factorization.

101642041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 101642041 is about 10081.7677517388. The cubic root of 101642041 is about 466.6856628889.

Adding to 101642041 its reverse (140246101), we get a palindrome (241888142).

The spelling of 101642041 in words is "one hundred one million, six hundred forty-two thousand, forty-one".