100661415 has 8 divisors (see below), whose sum is σ = 161058288. Its totient is φ = 53686080.

The previous prime is 100661413. The next prime is 100661441. The reversal of 100661415 is 514166001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100661415 - 2¹ = 100661413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100661413) 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, 3355366 + ... + 3355395.

It is an arithmetic number, because the mean of its divisors is an integer number (20132286).

Almost surely, 2^100661415 is an apocalyptic number.

100661415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100661415 is a deficient number, since it is larger than the sum of its proper divisors (60396873).

100661415 is an equidigital number, since it uses as much as digits as its factorization.

100661415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6710769.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 100661415 is about 10033.0162463738. The cubic root of 100661415 is about 465.1799742692.

The spelling of 100661415 in words is "one hundred million, six hundred sixty-one thousand, four hundred fifteen".