Search a number
101401193 = 142771059

101401193 has 4 divisors (see below), whose sum is σ = 101473680. Its totient is φ = 101328708.

The previous prime is 101401187. The next prime is 101401199. The reversal of 101401193 is 391104101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 391104101 = 3891005409.

It is an interprime number because it is at equal distance from previous prime (101401187) and next prime (101401199).

It is a cyclic number.

It is not a de Polignac number, because 101401193 - 24 = 101401177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101401199) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34103 + ... + 36956.

It is an arithmetic number, because the mean of its divisors is an integer number (25368420).

Almost surely, 2101401193 is an apocalyptic number.

It is an amenable number.

101401193 is a deficient number, since it is larger than the sum of its proper divisors (72487).

101401193 is an equidigital number, since it uses as much as digits as its factorization.

101401193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72486.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 101401193 is about 10069.8159367488. The cubic root of 101401193 is about 466.3167564644.

Adding to 101401193 its reverse (391104101), we get a palindrome (492505294).

The spelling of 101401193 in words is "one hundred one million, four hundred one thousand, one hundred ninety-three".

Divisors: 1 1427 71059 101401193