100067261 has 6 divisors (see below), whose sum is σ = 116404830. Its totient is φ = 85771896.

The previous prime is 100067221. The next prime is 100067269. The reversal of 100067261 is 162760001.

It can be written as a sum of positive squares in only one way, i.e., 90364036 + 9703225 = 9506^2 + 3115^2 .

It is not a de Polignac number, because 100067261 - 2²⁶ = 32958397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100067269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1021046 + ... + 1021143.

It is an arithmetic number, because the mean of its divisors is an integer number (19400805).

Almost surely, 2^100067261 is an apocalyptic number.

It is an amenable number.

100067261 is a deficient number, since it is larger than the sum of its proper divisors (16337569).

100067261 is an equidigital number, since it uses as much as digits as its factorization.

100067261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042203 (or 2042196 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 100067261 is about 10003.3624846848. The cubic root of 100067261 is about 464.2629260069.

The spelling of 100067261 in words is "one hundred million, sixty-seven thousand, two hundred sixty-one".