101026143 has 16 divisors (see below), whose sum is σ = 156176640. Its totient is φ = 64422072.

The previous prime is 101026141. The next prime is 101026147. The reversal of 101026143 is 341620101.

It is a happy number.

It is not a de Polignac number, because 101026143 - 2¹ = 101026141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101026141) 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 15 ways as a sum of consecutive naturals, for example, 80721 + ... + 81962.

It is an arithmetic number, because the mean of its divisors is an integer number (9761040).

Almost surely, 2^101026143 is an apocalyptic number.

101026143 is a deficient number, since it is larger than the sum of its proper divisors (55150497).

101026143 is a wasteful number, since it uses less digits than its factorization.

101026143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162715 (or 162709 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 101026143 is about 10051.1761998286. The cubic root of 101026143 is about 465.7411282380.

Adding to 101026143 its reverse (341620101), we get a palindrome (442646244).

The spelling of 101026143 in words is "one hundred one million, twenty-six thousand, one hundred forty-three".