101815106 has 4 divisors (see below), whose sum is σ = 152722662. Its totient is φ = 50907552.

The previous prime is 101815097. The next prime is 101815123. The reversal of 101815106 is 601518101.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 69039481 + 32775625 = 8309^2 + 5725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25453775 + ... + 25453778.

Almost surely, 2^101815106 is an apocalyptic number.

101815106 is a deficient number, since it is larger than the sum of its proper divisors (50907556).

101815106 is an equidigital number, since it uses as much as digits as its factorization.

101815106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50907555.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 101815106 is about 10090.3471694486. The cubic root of 101815106 is about 466.9503865418.

The spelling of 101815106 in words is "one hundred one million, eight hundred fifteen thousand, one hundred six".