100601001 has 8 divisors (see below), whose sum is σ = 149038560. Its totient is φ = 67067316.

The previous prime is 100600999. The next prime is 100601021. The reversal of 100601001 is 100106001.

It is not a de Polignac number, because 100601001 - 2¹ = 100600999 is a prime.

It is a super-2 number, since 2×100601001² = 20241122804404002, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100601021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862955 + ... + 1863008.

It is an arithmetic number, because the mean of its divisors is an integer number (18629820).

Almost surely, 2^100601001 is an apocalyptic number.

It is an amenable number.

100601001 is a deficient number, since it is larger than the sum of its proper divisors (48437559).

100601001 is an equidigital number, since it uses as much as digits as its factorization.

100601001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725972 (or 3725966 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 100601001 is about 10030.0050348941. The cubic root of 100601001 is about 465.0868932308.

Adding to 100601001 its reverse (100106001), we get a palindrome (200707002).

The spelling of 100601001 in words is "one hundred million, six hundred one thousand, one".