101809048 has 32 divisors (see below), whose sum is σ = 208924560. Its totient is φ = 46126080.

The previous prime is 101809031. The next prime is 101809051. The reversal of 101809048 is 840908101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27940 + ... + 31372.

Almost surely, 2^101809048 is an apocalyptic number.

It is an amenable number.

101809048 is an abundant number, since it is smaller than the sum of its proper divisors (107115512).

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

101809048 is a wasteful number, since it uses less digits than its factorization.

101809048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787 (or 3783 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 101809048 is about 10090.0469770958. The cubic root of 101809048 is about 466.9411251737.

The spelling of 101809048 in words is "one hundred one million, eight hundred nine thousand, forty-eight".