101258090 has 32 divisors (see below), whose sum is σ = 191725056. Its totient is φ = 38450880.

The previous prime is 101258089. The next prime is 101258107. The reversal of 101258090 is 90852101.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13349 + ... + 19511.

It is an arithmetic number, because the mean of its divisors is an integer number (5991408).

Almost surely, 2^101258090 is an apocalyptic number.

101258090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101258090 is a deficient number, since it is larger than the sum of its proper divisors (90466966).

101258090 is a wasteful number, since it uses less digits than its factorization.

101258090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 101258090 is about 10062.7078860513. The cubic root of 101258090 is about 466.0972891481.

The spelling of 101258090 in words is "one hundred one million, two hundred fifty-eight thousand, ninety".