105997015 has 16 divisors (see below), whose sum is σ = 129582432. Its totient is φ = 83217024.

The previous prime is 105997009. The next prime is 105997033. The reversal of 105997015 is 510799501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 105997015 - 2¹⁷ = 105865943 is a prime.

It is a super-2 number, since 2×105997015² = 22470734377820450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132597 + ... + 133393.

It is an arithmetic number, because the mean of its divisors is an integer number (8098902).

Almost surely, 2^105997015 is an apocalyptic number.

105997015 is a deficient number, since it is larger than the sum of its proper divisors (23585417).

105997015 is an equidigital number, since it uses as much as digits as its factorization.

105997015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 105997015 is about 10295.4851755515. The cubic root of 105997015 is about 473.2579066592.

The spelling of 105997015 in words is "one hundred five million, nine hundred ninety-seven thousand, fifteen".