106721002 has 8 divisors (see below), whose sum is σ = 169498116. Its totient is φ = 50221632.

The previous prime is 106720993. The next prime is 106721009. The reversal of 106721002 is 200127601.

It can be written as a sum of positive squares in 2 ways, for example, as 106688241 + 32761 = 10329^2 + 181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×106721002² = 22778744535768008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106721009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569393 + ... + 1569460.

Almost surely, 2^106721002 is an apocalyptic number.

106721002 is a deficient number, since it is larger than the sum of its proper divisors (62777114).

106721002 is a wasteful number, since it uses less digits than its factorization.

106721002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138872.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 106721002 is about 10330.5857529958. The cubic root of 106721002 is about 474.3329540056.

Adding to 106721002 its reverse (200127601), we get a palindrome (306848603).

The spelling of 106721002 in words is "one hundred six million, seven hundred twenty-one thousand, two".