100129390 has 16 divisors (see below), whose sum is σ = 181984608. Its totient is φ = 39662496.

The previous prime is 100129369. The next prime is 100129391. The reversal of 100129390 is 93921001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100129391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47577 + ... + 49636.

It is an arithmetic number, because the mean of its divisors is an integer number (11374038).

Almost surely, 2^100129390 is an apocalyptic number.

100129390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100129390 is a deficient number, since it is larger than the sum of its proper divisors (81855218).

100129390 is a wasteful number, since it uses less digits than its factorization.

100129390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97323.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 100129390 is about 10006.4674086313. The cubic root of 100129390 is about 464.3589888070.

The spelling of 100129390 in words is "one hundred million, one hundred twenty-nine thousand, three hundred ninety".