100261236 has 48 divisors (see below), whose sum is σ = 247947840. Its totient is φ = 31476480.

The previous prime is 100261229. The next prime is 100261267. The reversal of 100261236 is 632162001.

It is a happy number.

It is a super-3 number, since 3×100261236³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10755 + ... + 17781.

It is an arithmetic number, because the mean of its divisors is an integer number (5165580).

Almost surely, 2^100261236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100261236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123973920).

100261236 is an abundant number, since it is smaller than the sum of its proper divisors (147686604).

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

100261236 is a wasteful number, since it uses less digits than its factorization.

100261236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104 (or 7102 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 100261236 is about 10013.0532805933. The cubic root of 100261236 is about 464.5627152805.

The spelling of 100261236 in words is "one hundred million, two hundred sixty-one thousand, two hundred thirty-six".