101648690 has 64 divisors (see below), whose sum is σ = 221985792. Its totient is φ = 33004800.

The previous prime is 101648671. The next prime is 101648759. The reversal of 101648690 is 96846101.

It is a super-2 number, since 2×101648690² = 20664912357432200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101648690.

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 31 ways as a sum of consecutive naturals, for example, 43184 + ... + 45476.

It is an arithmetic number, because the mean of its divisors is an integer number (3468528).

Almost surely, 2^101648690 is an apocalyptic number.

101648690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101648690 is an abundant number, since it is smaller than the sum of its proper divisors (120337102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101648690 is a wasteful number, since it uses less digits than its factorization.

101648690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 101648690 is about 10082.0975000245. The cubic root of 101648690 is about 466.6958388793.

The spelling of 101648690 in words is "one hundred one million, six hundred forty-eight thousand, six hundred ninety".