101129072 has 20 divisors (see below), whose sum is σ = 213750456. Its totient is φ = 45967680.

The previous prime is 101129069. The next prime is 101129081. The reversal of 101129072 is 270921101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287123 + ... + 287474.

Almost surely, 2^101129072 is an apocalyptic number.

It is an amenable number.

101129072 is an abundant number, since it is smaller than the sum of its proper divisors (112621384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101129072 is a wasteful number, since it uses less digits than its factorization.

101129072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574616 (or 574610 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 101129072 is about 10056.2951428446. The cubic root of 101129072 is about 465.8992457179.

The spelling of 101129072 in words is "one hundred one million, one hundred twenty-nine thousand, seventy-two".