106721654 has 16 divisors (see below), whose sum is σ = 177959040. Its totient is φ = 47666880.

The previous prime is 106721611. The next prime is 106721683. The reversal of 106721654 is 456127601.

It is a super-2 number, since 2×106721654² = 22779022864991432, 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 106721654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65399 + ... + 67010.

It is an arithmetic number, because the mean of its divisors is an integer number (11122440).

Almost surely, 2^106721654 is an apocalyptic number.

106721654 is a deficient number, since it is larger than the sum of its proper divisors (71237386).

106721654 is a wasteful number, since it uses less digits than its factorization.

106721654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132455.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 106721654 is about 10330.6173097255. The cubic root of 106721654 is about 474.3339199650. Note that the first 3 decimals are identical.

The spelling of 106721654 in words is "one hundred six million, seven hundred twenty-one thousand, six hundred fifty-four".