981500106 has 8 divisors (see below), whose sum is σ = 1963000224. Its totient is φ = 327166700.

The previous prime is 981500089. The next prime is 981500129. The reversal of 981500106 is 601005189.

It is a happy number.

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

981500106 is an admirable number.

It is a super-2 number, since 2×981500106² = 1926684916156022472, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81791670 + ... + 81791681.

It is an arithmetic number, because the mean of its divisors is an integer number (245375028).

Almost surely, 2^981500106 is an apocalyptic number.

981500106 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.

981500106 is a wasteful number, since it uses less digits than its factorization.

981500106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163583356.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 981500106 is about 31328.9020873697. The cubic root of 981500106 is about 993.7949456037.

The spelling of 981500106 in words is "nine hundred eighty-one million, five hundred thousand, one hundred six".