101143257 has 8 divisors (see below), whose sum is σ = 135069984. Its totient is φ = 67322688.

The previous prime is 101143253. The next prime is 101143261. The reversal of 101143257 is 752341101.

It is an interprime number because it is at equal distance from previous prime (101143253) and next prime (101143261).

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

It is not a de Polignac number, because 101143257 - 2² = 101143253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101143253) 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 7 ways as a sum of consecutive naturals, for example, 24288 + ... + 28145.

It is an arithmetic number, because the mean of its divisors is an integer number (16883748).

Almost surely, 2^101143257 is an apocalyptic number.

It is an amenable number.

101143257 is a deficient number, since it is larger than the sum of its proper divisors (33926727).

101143257 is an equidigital number, since it uses as much as digits as its factorization.

101143257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53079.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 101143257 is about 10057.0003977329. Note that the first 3 decimals coincide. The cubic root of 101143257 is about 465.9210280194.

Adding to 101143257 its reverse (752341101), we get a palindrome (853484358).

The spelling of 101143257 in words is "one hundred one million, one hundred forty-three thousand, two hundred fifty-seven".