101648409 has 8 divisors (see below), whose sum is σ = 135825792. Its totient is φ = 67618320.

The previous prime is 101648401. The next prime is 101648429. The reversal of 101648409 is 904846101.

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

It is not a de Polignac number, because 101648409 - 2³ = 101648401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101648409.

It is not an unprimeable number, because it can be changed into a prime (101648401) 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, 35202 + ... + 37979.

It is an arithmetic number, because the mean of its divisors is an integer number (16978224).

Almost surely, 2^101648409 is an apocalyptic number.

It is an amenable number.

101648409 is a deficient number, since it is larger than the sum of its proper divisors (34177383).

101648409 is an equidigital number, since it uses as much as digits as its factorization.

101648409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73647.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 101648409 is about 10082.0835644226. The cubic root of 101648409 is about 466.6954088306.

The spelling of 101648409 in words is "one hundred one million, six hundred forty-eight thousand, four hundred nine".