101990064 has 40 divisors (see below), whose sum is σ = 287428032. Its totient is φ = 30905920.

The previous prime is 101990051. The next prime is 101990069. The reversal of 101990064 is 460099101.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (101990069) 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, 96054 + ... + 97109.

Almost surely, 2^101990064 is an apocalyptic number.

It is an amenable number.

101990064 is an abundant number, since it is smaller than the sum of its proper divisors (185437968).

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

101990064 is a wasteful number, since it uses less digits than its factorization.

101990064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193185 (or 193179 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 101990064 is about 10099.0130210828. The cubic root of 101990064 is about 467.2177010167.

The spelling of 101990064 in words is "one hundred one million, nine hundred ninety thousand, sixty-four".