101447890 has 8 divisors (see below), whose sum is σ = 182606220. Its totient is φ = 40579152.

The previous prime is 101447869. The next prime is 101447909. The reversal of 101447890 is 98744101.

It can be written as a sum of positive squares in 2 ways, for example, as 94420089 + 7027801 = 9717^2 + 2651^2 .

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

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, 5072385 + ... + 5072404.

Almost surely, 2^101447890 is an apocalyptic number.

101447890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101447890 is a deficient number, since it is larger than the sum of its proper divisors (81158330).

101447890 is a wasteful number, since it uses less digits than its factorization.

101447890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144796.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 101447890 is about 10072.1343319080. The cubic root of 101447890 is about 466.3883277846.

The spelling of 101447890 in words is "one hundred one million, four hundred forty-seven thousand, eight hundred ninety".