101207890 has 16 divisors (see below), whose sum is σ = 208199232. Its totient is φ = 34699824.

The previous prime is 101207879. The next prime is 101207891. The reversal of 101207890 is 98702101.

It is not an unprimeable number, because it can be changed into a prime (101207891) 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 7 ways as a sum of consecutive naturals, for example, 722844 + ... + 722983.

It is an arithmetic number, because the mean of its divisors is an integer number (13012452).

Almost surely, 2^101207890 is an apocalyptic number.

101207890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101207890 is an abundant number, since it is smaller than the sum of its proper divisors (106991342).

101207890 is a wasteful number, since it uses less digits than its factorization.

101207890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445841.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 101207890 is about 10060.2132184164. The cubic root of 101207890 is about 466.0202518414.

Adding to 101207890 its reverse (98702101), we get a palindrome (199909991).

The spelling of 101207890 in words is "one hundred one million, two hundred seven thousand, eight hundred ninety".