101287130 has 32 divisors (see below), whose sum is σ = 213998976. Its totient is φ = 33787584.

The previous prime is 101287117. The next prime is 101287159. The reversal of 101287130 is 31782101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101287096 and 101287105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16964 + ... + 22143.

It is an arithmetic number, because the mean of its divisors is an integer number (6687468).

Almost surely, 2^101287130 is an apocalyptic number.

101287130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101287130 is an abundant number, since it is smaller than the sum of its proper divisors (112711846).

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

101287130 is a wasteful number, since it uses less digits than its factorization.

101287130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39158.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 101287130 is about 10064.1507341653. The cubic root of 101287130 is about 466.1418425316.

The spelling of 101287130 in words is "one hundred one million, two hundred eighty-seven thousand, one hundred thirty".