106662515 has 4 divisors (see below), whose sum is σ = 127995024. Its totient is φ = 85330008.

The previous prime is 106662509. The next prime is 106662529. The reversal of 106662515 is 515266601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106662515 - 2⁴ = 106662499 is a prime.

It is a super-2 number, since 2×106662515² = 22753784212250450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10666247 + ... + 10666256.

It is an arithmetic number, because the mean of its divisors is an integer number (31998756).

Almost surely, 2^106662515 is an apocalyptic number.

106662515 is a deficient number, since it is larger than the sum of its proper divisors (21332509).

106662515 is an equidigital number, since it uses as much as digits as its factorization.

106662515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332508.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 106662515 is about 10327.7545962324. The cubic root of 106662515 is about 474.2462875874.

The spelling of 106662515 in words is "one hundred six million, six hundred sixty-two thousand, five hundred fifteen".