100531496 has 64 divisors (see below), whose sum is σ = 210228480. Its totient is φ = 44778240.

The previous prime is 100531493. The next prime is 100531499. The reversal of 100531496 is 694135001.

It is an interprime number because it is at equal distance from previous prime (100531493) and next prime (100531499).

It is not an unprimeable number, because it can be changed into a prime (100531493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640250 + ... + 640406.

It is an arithmetic number, because the mean of its divisors is an integer number (3284820).

Almost surely, 2^100531496 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 100531496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105114240).

100531496 is an abundant number, since it is smaller than the sum of its proper divisors (109696984).

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

100531496 is a wasteful number, since it uses less digits than its factorization.

100531496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 100531496 is about 10026.5395825280. The cubic root of 100531496 is about 464.9797593995.

Adding to 100531496 its reverse (694135001), we get a palindrome (794666497).

The spelling of 100531496 in words is "one hundred million, five hundred thirty-one thousand, four hundred ninety-six".