100039401 has 32 divisors (see below), whose sum is σ = 184780800. Its totient is φ = 51967440.

The previous prime is 100039399. The next prime is 100039403. The reversal of 100039401 is 104930001.

It is an interprime number because it is at equal distance from previous prime (100039399) and next prime (100039403).

It is not a de Polignac number, because 100039401 - 2¹ = 100039399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100039403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21981 + ... + 26138.

It is an arithmetic number, because the mean of its divisors is an integer number (5774400).

Almost surely, 2^100039401 is an apocalyptic number.

100039401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100039401 is a deficient number, since it is larger than the sum of its proper divisors (84741399).

100039401 is a wasteful number, since it uses less digits than its factorization.

100039401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48146 (or 48140 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 100039401 is about 10001.9698559834. The cubic root of 100039401 is about 464.2198364371.

Adding to 100039401 its reverse (104930001), we get a palindrome (204969402).

It can be divided in two parts, 1000 and 39401, that added together give a square (40401 = 201²).

The spelling of 100039401 in words is "one hundred million, thirty-nine thousand, four hundred one".