101148891 has 4 divisors (see below), whose sum is σ = 134865192. Its totient is φ = 67432592.

The previous prime is 101148889. The next prime is 101148893. The reversal of 101148891 is 198841101.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (101148889) and next prime (101148893).

It is a cyclic number.

It is not a de Polignac number, because 101148891 - 2¹ = 101148889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101148893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16858146 + ... + 16858151.

It is an arithmetic number, because the mean of its divisors is an integer number (33716298).

Almost surely, 2^101148891 is an apocalyptic number.

101148891 is a deficient number, since it is larger than the sum of its proper divisors (33716301).

101148891 is an equidigital number, since it uses as much as digits as its factorization.

101148891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33716300.

The product of its (nonzero) digits is 2304, while the sum is 33.

The square root of 101148891 is about 10057.2804972318. The cubic root of 101148891 is about 465.9296789515.

Adding to 101148891 its reverse (198841101), we get a palindrome (299989992).

The spelling of 101148891 in words is "one hundred one million, one hundred forty-eight thousand, eight hundred ninety-one".