101143049 has 16 divisors (see below), whose sum is σ = 120078336. Its totient is φ = 83365200.

The previous prime is 101143019. The next prime is 101143057. The reversal of 101143049 is 940341101.

It is not a de Polignac number, because 101143049 - 2¹² = 101138953 is a prime.

It is a super-2 number, since 2×101143049² = 20459832722032802, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101143019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34844 + ... + 37634.

It is an arithmetic number, because the mean of its divisors is an integer number (7504896).

Almost surely, 2^101143049 is an apocalyptic number.

It is an amenable number.

101143049 is a deficient number, since it is larger than the sum of its proper divisors (18935287).

101143049 is a wasteful number, since it uses less digits than its factorization.

101143049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 101143049 is about 10056.9900566720. The cubic root of 101143049 is about 465.9207086320.

The spelling of 101143049 in words is "one hundred one million, one hundred forty-three thousand, forty-nine".