100912530 has 32 divisors (see below), whose sum is σ = 246763584. Its totient is φ = 26401856.

The previous prime is 100912517. The next prime is 100912543. The reversal of 100912530 is 35219001.

It is an interprime number because it is at equal distance from previous prime (100912517) and next prime (100912543).

It is a super-2 number, since 2×100912530² = 20366677422001800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100912497 and 100912506.

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, 30144 + ... + 33323.

It is an arithmetic number, because the mean of its divisors is an integer number (7711362).

Almost surely, 2^100912530 is an apocalyptic number.

100912530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100912530 is an abundant number, since it is smaller than the sum of its proper divisors (145851054).

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

100912530 is a wasteful number, since it uses less digits than its factorization.

100912530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63530.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 100912530 is about 10045.5228833546. The cubic root of 100912530 is about 465.5664734630.

It can be divided in two parts, 10091 and 2530, that added together give a palindrome (12621).

The spelling of 100912530 in words is "one hundred million, nine hundred twelve thousand, five hundred thirty".