101690450 has 24 divisors (see below), whose sum is σ = 189498288. Its totient is φ = 40600080.

The previous prime is 101690423. The next prime is 101690461. The reversal of 101690450 is 54096101.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30569 + ... + 33731.

It is an arithmetic number, because the mean of its divisors is an integer number (7895762).

Almost surely, 2^101690450 is an apocalyptic number.

101690450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101690450 is a deficient number, since it is larger than the sum of its proper divisors (87807838).

101690450 is a wasteful number, since it uses less digits than its factorization.

101690450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 101690450 is about 10084.1682849901. The cubic root of 101690450 is about 466.7597405060.

The spelling of 101690450 in words is "one hundred one million, six hundred ninety thousand, four hundred fifty".