100001430 has 72 divisors (see below), whose sum is σ = 266181552. Its totient is φ = 26047776.

The previous prime is 100001399. The next prime is 100001431. The reversal of 100001430 is 34100001.

It is a Harshad number since it is a multiple of its sum of digits (9).

100001430 is a modest number, since divided by 1430 gives 100 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198559 + ... + 199061.

It is an arithmetic number, because the mean of its divisors is an integer number (3696966).

Almost surely, 2^100001430 is an apocalyptic number.

100001430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100001430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133090776).

100001430 is an abundant number, since it is smaller than the sum of its proper divisors (166180122).

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

100001430 is a wasteful number, since it uses less digits than its factorization.

100001430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100001430 is about 10000.0714997444. The cubic root of 100001430 is about 464.1610958414.

Adding to 100001430 its reverse (34100001), we get a palindrome (134101431).

The spelling of 100001430 in words is "one hundred million, one thousand, four hundred thirty".