101990814 has 8 divisors (see below), whose sum is σ = 203981640. Its totient is φ = 33996936.

The previous prime is 101990813. The next prime is 101990827. The reversal of 101990814 is 418099101.

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

101990814 is an admirable number.

It is a super-2 number, since 2×101990814² = 20804252280765192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101990813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8499229 + ... + 8499240.

It is an arithmetic number, because the mean of its divisors is an integer number (25497705).

Almost surely, 2^101990814 is an apocalyptic number.

101990814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

101990814 is a wasteful number, since it uses less digits than its factorization.

101990814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16998474.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 101990814 is about 10099.0501533560. The cubic root of 101990814 is about 467.2188462668.

The spelling of 101990814 in words is "one hundred one million, nine hundred ninety thousand, eight hundred fourteen".