101078891 has 8 divisors (see below), whose sum is σ = 106280400. Its totient is φ = 95991840.

The previous prime is 101078849. The next prime is 101078903. The reversal of 101078891 is 198870101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101078891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101078291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26801 + ... + 30338.

It is an arithmetic number, because the mean of its divisors is an integer number (13285050).

Almost surely, 2^101078891 is an apocalyptic number.

101078891 is a deficient number, since it is larger than the sum of its proper divisors (5201509).

101078891 is an equidigital number, since it uses as much as digits as its factorization.

101078891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57229.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 101078891 is about 10053.7998289204. The cubic root of 101078891 is about 465.8221720744.

The spelling of 101078891 in words is "one hundred one million, seventy-eight thousand, eight hundred ninety-one".