101291229 has 80 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 57697920.

The previous prime is 101291209. The next prime is 101291249. The reversal of 101291229 is 922192101.

It is an interprime number because it is at equal distance from previous prime (101291209) and next prime (101291249).

It is not a de Polignac number, because 101291229 - 2²⁴ = 84514013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101291209) 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 79 ways as a sum of consecutive naturals, for example, 946594 + ... + 946700.

It is an arithmetic number, because the mean of its divisors is an integer number (2195424).

Almost surely, 2^101291229 is an apocalyptic number.

It is an amenable number.

101291229 is a deficient number, since it is larger than the sum of its proper divisors (74342691).

101291229 is a wasteful number, since it uses less digits than its factorization.

101291229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 101291229 is about 10064.3543757163. The cubic root of 101291229 is about 466.1481305619.

The spelling of 101291229 in words is "one hundred one million, two hundred ninety-one thousand, two hundred twenty-nine".